diff --git a/tasks/ts.js b/tasks/ts.js
index f57177a2..caad6b97 100644
--- a/tasks/ts.js
+++ b/tasks/ts.js
@@ -364,7 +364,7 @@ function pluginFn(grunt) {
                         //   assume that emitted JS in spite of error codes implies type-only errors.
                         var isOnlyTypeErrors = !hasPreventEmitErrors;
                         if (hasTS7017Error) {
-                            grunt.log.writeln(('Note:  You may wish to enable the suppressImplicitAnyIndexError' + ' grunt-ts option to allow dynamic property access by index.  This will' + ' suppress TypeScript error TS7017.').magenta);
+                            grunt.log.writeln(('Note:  You may wish to enable the suppressImplicitAnyIndexErrors' + ' grunt-ts option to allow dynamic property access by index.  This will' + ' suppress TypeScript error TS7017.').magenta);
                         }
                         // Log error summary
                         if (level1ErrorCount + level5ErrorCount + nonEmitPreventingWarningCount > 0) {
diff --git a/tasks/ts.ts b/tasks/ts.ts
index 1c510f57..dba090ef 100644
--- a/tasks/ts.ts
+++ b/tasks/ts.ts
@@ -453,7 +453,7 @@ function pluginFn(grunt: IGrunt) {
                         var isOnlyTypeErrors = !hasPreventEmitErrors;
 
                         if (hasTS7017Error) {
-                            grunt.log.writeln(('Note:  You may wish to enable the suppressImplicitAnyIndexError' +
+                            grunt.log.writeln(('Note:  You may wish to enable the suppressImplicitAnyIndexErrors' +
                                 ' grunt-ts option to allow dynamic property access by index.  This will' +
                                 ' suppress TypeScript error TS7017.').magenta);
                         }