diff --git a/lib/ace/RenderLoop.js b/lib/ace/RenderLoop.js
index c1fcd490..9281bb00 100644
--- a/lib/ace/RenderLoop.js
+++ b/lib/ace/RenderLoop.js
@@ -5,8 +5,8 @@
  * @license LGPLv3 <http://www.gnu.org/licenses/lgpl-3.0.txt>
  * @author Fabian Jakobs <fabian AT ajax DOT org>
  */
-require.def("ace/RenderLoop", function() {
-
+require.def("ace/RenderLoop", ["ace/lib/event"], function(event) {
+    
 var RenderLoop = function(onRender) {
     this.onRender = onRender;
     this.pending = false;
@@ -37,12 +37,12 @@ var RenderLoop = function(onRender) {
         this.setTimeoutZero = function(callback) {
             if (!this.attached) {
                 var _self = this;
-                window.addEventListener("message", function(e) {
+                event.addListener(window, "message", function(e) {
                     if (e.source == window && _self.callback && e.data == _self.messageName) {
                         e.stopPropagation();
                         _self.callback();
                     }
-                }, false);
+                });
                 this.attached = true;
             }
             this.callback = callback;