diff --git a/src/latex.c b/src/latex.c
index f2ed907..6538a89 100644
--- a/src/latex.c
+++ b/src/latex.c
@@ -150,6 +150,23 @@ void mmd_print_string_latex(DString * out, const char * str) {
 }
 
 
+void mmd_print_label_latex(DString * out, const char * str) {
+	if (str == NULL) {
+		return;
+	}
+
+	while (*str != '\0') {
+		if (*str == '_') {
+			print_char(*str);
+		} else {
+			mmd_print_char_latex(out, *str);
+		}
+
+		str++;
+	}
+}
+
+
 void mmd_print_localized_char_latex(DString * out, unsigned short type, scratch_pad * scratch) {
 	switch (type) {
 		case DASH_N:
@@ -272,18 +289,18 @@ void mmd_export_link_latex(DString * out, const char * source, token * text, lin
 				if (temp_char && temp_char[0] != '\0') {
 					mmd_export_token_tree_latex(out, source, text->child, scratch);
 					print_const(" (\\autoref{");
-					mmd_print_string_latex(out, &(link->url)[1]);
+					mmd_print_label_latex(out, &(link->url)[1]);
 					print_const("})");
 				} else {
 					print_const("\\autoref{");
-					mmd_print_string_latex(out, &(link->url)[1]);
+					mmd_print_label_latex(out, &(link->url)[1]);
 					print_const("}");
 				}
 
 				free(temp_char);
 			} else {
 				print_const("\\autoref{");
-				mmd_print_string_latex(out, &(link->url)[1]);
+				mmd_print_label_latex(out, &(link->url)[1]);
 				print_const("}");
 			}
 
diff --git a/tests/MMD6Tests/Cross-References.fodt b/tests/MMD6Tests/Cross-References.fodt
index 8423327..9296d1a 100644
--- a/tests/MMD6Tests/Cross-References.fodt
+++ b/tests/MMD6Tests/Cross-References.fodt
@@ -299,6 +299,10 @@ office:mimetype="application/vnd.oasis.opendocument.text">
 <text:h text:outline-level="1"><text:bookmark text:name="test的multibyte"/>Test 的 Multibyte</text:h>
 
 <text:p text:style-name="Standard">10</text:p>
+
+<text:h text:outline-level="1"><text:bookmark text:name="test_underscore"/>Test_Underscore</text:h>
+
+<text:p text:style-name="Standard">Link to <text:a xlink:type="simple" xlink:href="#test_underscore">Test_Underscore</text:a>.</text:p>
 </office:text>
 </office:body>
 </office:document>
diff --git a/tests/MMD6Tests/Cross-References.html b/tests/MMD6Tests/Cross-References.html
index 27b4249..c71eac7 100644
--- a/tests/MMD6Tests/Cross-References.html
+++ b/tests/MMD6Tests/Cross-References.html
@@ -28,6 +28,10 @@ <h1 id="test的multibyte">Test 的 Multibyte</h1>
 
 <p>10</p>
 
+<h1 id="test_underscore">Test_Underscore</h1>
+
+<p>Link to <a href="#test_underscore">Test_Underscore</a>.</p>
+
 </body>
 </html>
 
diff --git a/tests/MMD6Tests/Cross-References.htmlc b/tests/MMD6Tests/Cross-References.htmlc
index 8a690db..59d9b51 100644
--- a/tests/MMD6Tests/Cross-References.htmlc
+++ b/tests/MMD6Tests/Cross-References.htmlc
@@ -22,3 +22,7 @@ latexconfig:	article</p>
 <h1>Test 的 Multibyte</h1>
 
 <p>10</p>
+
+<h1>Test_Underscore</h1>
+
+<p>Link to [Test_Underscore].</p>
diff --git a/tests/MMD6Tests/Cross-References.opml b/tests/MMD6Tests/Cross-References.opml
index c99261e..4a26669 100644
--- a/tests/MMD6Tests/Cross-References.opml
+++ b/tests/MMD6Tests/Cross-References.opml
@@ -8,7 +8,8 @@
 <outline text="Strip out &amp;%^ characters &amp;*^" _note="&#10;[A Section].&#10;&#10;"><outline text="1 Cross-References: Special Characters!@#$%&amp;*()&lt;&gt;^" _note="&#10;5&#10;&#10;And now, link to [1 Cross-References: Special Characters!@#$%&amp;*()&lt;&gt;^][]&#10;&#10;"></outline>
 </outline>
 <outline text="Заголовок по-русски" _note="&#10;И ссылка на [Заголовок по-русски].&#10;&#10;"></outline>
-<outline text="Test 的 Multibyte" _note="&#10;10&#10;"></outline>
+<outline text="Test 的 Multibyte" _note="&#10;10&#10;&#10;"></outline>
+<outline text="Test_Underscore" _note="&#10;Link to [Test_Underscore].&#10;"></outline>
 <outline text="&gt;&gt;Metadata&lt;&lt;">
 <outline text="title" _note="Cross-References"/>
 <outline text="latexconfig" _note="article"/>
diff --git a/tests/MMD6Tests/Cross-References.tex b/tests/MMD6Tests/Cross-References.tex
index b58a8aa..79d8e56 100644
--- a/tests/MMD6Tests/Cross-References.tex
+++ b/tests/MMD6Tests/Cross-References.tex
@@ -30,5 +30,10 @@ \part{Test 的 Multibyte}
 
 10
 
+\part{Test\_Underscore}
+\label{test_underscore}
+
+Link to Test\_Underscore (\autoref{test_underscore}).
+
 \input{mmd6-article-footer}
 \end{document}
diff --git a/tests/MMD6Tests/Cross-References.text b/tests/MMD6Tests/Cross-References.text
index 657234d..01ec0c9 100644
--- a/tests/MMD6Tests/Cross-References.text
+++ b/tests/MMD6Tests/Cross-References.text
@@ -22,3 +22,7 @@ And now, link to [1 Cross-References: Special Characters!@#$%&*()<>^][]
 # Test 的 Multibyte #
 
 10
+
+# Test_Underscore #
+
+Link to [Test_Underscore].