diff --git a/src/ngMessages/messages.js b/src/ngMessages/messages.js
index 20edf80fa1c0..9a5020fe8397 100644
--- a/src/ngMessages/messages.js
+++ b/src/ngMessages/messages.js
@@ -565,7 +565,7 @@ angular.module('ngMessages', [])
     *
     * @param {expression} ngMessage|when a string value corresponding to the message key.
     */
-  .directive('ngMessage', ngMessageDirectiveFactory('AE'))
+  .directive('ngMessage', ngMessageDirectiveFactory())
 
 
    /**
@@ -597,9 +597,9 @@ angular.module('ngMessages', [])
     *
     * @param {expression} ngMessageExp|whenExp an expression value corresponding to the message key.
     */
-  .directive('ngMessageExp', ngMessageDirectiveFactory('A'));
+  .directive('ngMessageExp', ngMessageDirectiveFactory());
 
-function ngMessageDirectiveFactory(restrict) {
+function ngMessageDirectiveFactory() {
   return ['$animate', function($animate) {
     return {
       restrict: 'AE',