diff --git a/src/ng/httpBackend.js b/src/ng/httpBackend.js
index ed8404f96cfb..ca6917e5a4a7 100644
--- a/src/ng/httpBackend.js
+++ b/src/ng/httpBackend.js
@@ -25,7 +25,7 @@ var XHR = window.XMLHttpRequest || function() {
  */
 function $HttpBackendProvider() {
   this.$get = ['$browser', '$window', '$document', function($browser, $window, $document) {
-    return createHttpBackend($browser, XHR, $browser.defer, $window.angular.callbacks,
+    return createHttpBackend($browser, XHR, $browser.defer, angular.callbacks,
         $document[0], $window.location.protocol.replace(':', ''));
   }];
 }