diff --git a/backbone.js b/backbone.js
index f24ff304..00f9b9f5 100644
--- a/backbone.js
+++ b/backbone.js
@@ -1034,4 +1034,4 @@
     return string.replace(/&(?!\w+;)/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
   };
 
-})();
+}).call(this);