diff --git a/lib/ace/editor.js b/lib/ace/editor.js
index 517b69b4..6a96daa0 100644
--- a/lib/ace/editor.js
+++ b/lib/ace/editor.js
@@ -588,8 +588,9 @@ var Editor = function(renderer, session) {
     };
 
 
-    this.onChangeMode = function() {
+    this.onChangeMode = function(e) {
         this.renderer.updateText();
+        this._emit("changeMode", e);
     };