diff --git a/Matlab.tmbundle/Syntaxes/MATLAB.tmLanguage b/Matlab.tmbundle/Syntaxes/MATLAB.tmLanguage
index 9a3f03b..395c797 100644
--- a/Matlab.tmbundle/Syntaxes/MATLAB.tmLanguage
+++ b/Matlab.tmbundle/Syntaxes/MATLAB.tmLanguage
@@ -2792,6 +2792,10 @@
 			</dict>
 			<key>patterns</key>
 			<array>
+				<dict>
+					<key>include</key>
+					<string>#function_call</string>
+				</dict>
 				<dict>
 					<key>include</key>
 					<string>#braced_validator_list</string>
diff --git a/test/README.md b/test/README.md
index b815632..30ebfad 100644
--- a/test/README.md
+++ b/test/README.md
@@ -4,6 +4,13 @@ The tests in this directory leverage:
 
 https://github.com/PanAeon/vscode-tmgrammar-test
 
+# Test requirements
+
+The tests require xmllint which can be installed (on apt using linux distros) using
+```bash
+sudo apt install libxml2-utils
+```
+
 # Running the tests
 
 From the root of the repo
diff --git a/test/snap/argumentValidation.m.snap b/test/snap/argumentValidation.m.snap
index 960ef31..964094c 100644
--- a/test/snap/argumentValidation.m.snap
+++ b/test/snap/argumentValidation.m.snap
@@ -65,11 +65,13 @@
 #                 ^^^^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab variable.other.readwrite.matlab
 #                              ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
 #                               ^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab variable.other.readwrite.matlab
-#                                         ^^^^^^^^^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
-#                                                           ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab variable.other.readwrite.matlab
-#                                                            ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
-#                                                             ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab variable.other.readwrite.matlab
-#                                                              ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
+#                                         ^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
+#                                           ^^^^^^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab entity.name.function.matlab
+#                                                          ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.parens.begin.matlab
+#                                                           ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab variable.other.readwrite.matlab
+#                                                            ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.separator.comma.matlab
+#                                                             ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab variable.other.readwrite.matlab
+#                                                              ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.parens.end.matlab
 #                                                               ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab punctuation.section.block.end.matlab
 >        method (1,:) char {mustBeMember(method,{'linear','cubic','spline'})} = 'linear' % End of line comment
 #^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab
@@ -84,23 +86,24 @@
 #                     ^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab storage.type.matlab
 #                         ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab
 #                          ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab punctuation.section.block.begin.matlab
-#                           ^^^^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
-#                                        ^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab variable.other.readwrite.matlab
-#                                              ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
-#                                               ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab punctuation.section.block.begin.matlab
-#                                                ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab string.quoted.single.matlab punctuation.definition.string.begin.matlab
-#                                                 ^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab string.quoted.single.matlab
-#                                                       ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab string.quoted.single.matlab punctuation.definition.string.end.matlab
-#                                                        ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab
-#                                                         ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab string.quoted.single.matlab punctuation.definition.string.begin.matlab
-#                                                          ^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab string.quoted.single.matlab
-#                                                               ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab string.quoted.single.matlab punctuation.definition.string.end.matlab
-#                                                                ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab
-#                                                                 ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab string.quoted.single.matlab punctuation.definition.string.begin.matlab
-#                                                                  ^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab string.quoted.single.matlab
-#                                                                        ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.block.validation.matlab string.quoted.single.matlab punctuation.definition.string.end.matlab
-#                                                                         ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab punctuation.section.block.end.matlab
-#                                                                          ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
+#                           ^^^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab entity.name.function.matlab
+#                                       ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.parens.begin.matlab
+#                                        ^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab variable.other.readwrite.matlab
+#                                              ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.separator.comma.matlab
+#                                               ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.braces.begin.matlab
+#                                                ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab string.quoted.single.matlab punctuation.definition.string.begin.matlab
+#                                                 ^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab string.quoted.single.matlab
+#                                                       ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab string.quoted.single.matlab punctuation.definition.string.end.matlab
+#                                                        ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab punctuation.separator.comma.matlab
+#                                                         ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab string.quoted.single.matlab punctuation.definition.string.begin.matlab
+#                                                          ^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab string.quoted.single.matlab
+#                                                               ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab string.quoted.single.matlab punctuation.definition.string.end.matlab
+#                                                                ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab punctuation.separator.comma.matlab
+#                                                                 ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab string.quoted.single.matlab punctuation.definition.string.begin.matlab
+#                                                                  ^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab string.quoted.single.matlab
+#                                                                        ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.cell.literal.matlab string.quoted.single.matlab punctuation.definition.string.end.matlab
+#                                                                         ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.braces.end.matlab
+#                                                                          ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.parens.end.matlab
 #                                                                           ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab punctuation.section.block.end.matlab
 #                                                                            ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab
 #                                                                             ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab keyword.operator.assignment.matlab
@@ -142,21 +145,24 @@
 #                   ^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab storage.type.matlab
 #                         ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab
 #                          ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab punctuation.section.block.begin.matlab
-#                           ^^^^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
-#                                        ^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab variable.other.readwrite.matlab
-#                                            ^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
-#                                              ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab string.quoted.double.matlab punctuation.definition.string.begin.matlab
-#                                               ^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab string.quoted.double.matlab
-#                                                    ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab string.quoted.double.matlab punctuation.definition.string.end.matlab
-#                                                     ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
-#                                                      ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab string.quoted.double.matlab punctuation.definition.string.begin.matlab
-#                                                       ^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab string.quoted.double.matlab
-#                                                             ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab string.quoted.double.matlab punctuation.definition.string.end.matlab
-#                                                              ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
-#                                                               ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab string.quoted.double.matlab punctuation.definition.string.begin.matlab
-#                                                                ^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab string.quoted.double.matlab
-#                                                                     ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab string.quoted.double.matlab punctuation.definition.string.end.matlab
-#                                                                      ^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
+#                           ^^^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab entity.name.function.matlab
+#                                       ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.parens.begin.matlab
+#                                        ^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab variable.other.readwrite.matlab
+#                                            ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.separator.comma.matlab
+#                                             ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.brackets.begin.matlab
+#                                              ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab string.quoted.double.matlab punctuation.definition.string.begin.matlab
+#                                               ^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab string.quoted.double.matlab
+#                                                    ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab string.quoted.double.matlab punctuation.definition.string.end.matlab
+#                                                     ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab punctuation.separator.comma.matlab
+#                                                      ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab string.quoted.double.matlab punctuation.definition.string.begin.matlab
+#                                                       ^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab string.quoted.double.matlab
+#                                                             ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab string.quoted.double.matlab punctuation.definition.string.end.matlab
+#                                                              ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab punctuation.separator.comma.matlab
+#                                                               ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab string.quoted.double.matlab punctuation.definition.string.begin.matlab
+#                                                                ^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab string.quoted.double.matlab
+#                                                                     ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab meta.brackets.matlab string.quoted.double.matlab punctuation.definition.string.end.matlab
+#                                                                      ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.brackets.end.matlab
+#                                                                       ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.parens.end.matlab
 #                                                                        ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab punctuation.section.block.end.matlab
 >    end
 #^^^^ source.matlab meta.function.matlab meta.arguments.matlab
@@ -177,11 +183,13 @@
 #                         ^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab storage.type.matlab
 #                               ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab
 #                                ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab punctuation.section.block.begin.matlab
-#                                 ^^^^^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
-#                                               ^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab variable.other.readwrite.matlab
-#                                                   ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab punctuation.accessor.dot.matlab
-#                                                    ^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab variable.other.property.matlab
-#                                                         ^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
+#                                 ^^^^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab entity.name.function.matlab
+#                                              ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.parens.begin.matlab
+#                                               ^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab variable.other.readwrite.matlab
+#                                                   ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.accessor.dot.matlab
+#                                                    ^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab variable.other.property.matlab
+#                                                         ^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.function-call.parens.matlab punctuation.section.parens.end.matlab
+#                                                          ^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab
 #                                                            ^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.continuation.line.matlab punctuation.separator.continuation.line.matlab
 #                                                               ^^^^^^^^^^^^^^^^^^ source.matlab meta.function.matlab meta.arguments.matlab meta.assignment.definition.property.matlab meta.block.validation.matlab meta.continuation.line.matlab comment.continuation.line.matlab
 >                                 mustBeReal}
diff --git a/test/t08PropertyValidation.m b/test/t08PropertyValidation.m
index 7032314..8cce060 100644
--- a/test/t08PropertyValidation.m
+++ b/test/t08PropertyValidation.m
@@ -61,6 +61,9 @@
 %                                                            ^ keyword.operator.assignment.matlab
 %                                                              ^^ constant.numeric.matlab
 %                                                                ^ punctuation.terminator.semicolon.matlab
+        PropFcnArgs {mustBeGreaterThan(PropFcnArgs, 2)}
+%                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ meta.function-call.parens.matlab
+
         % Ending commentary
     end
 end