diff --git a/app/assets/javascripts/env.js b/app/assets/javascripts/env.js
index 458b7caeb2a..8b897bbe233 100644
--- a/app/assets/javascripts/env.js
+++ b/app/assets/javascripts/env.js
@@ -1,4 +1,3 @@
 window.ENV = {};
 window.EmberENV = window.EmberENV || {};
 window.EmberENV.FORCE_JQUERY = true;
-window.EmberENV.EXTEND_PROTOTYPES = window.EmberENV.EXTEND_PROTOTYPES || {};