diff --git a/source/Ox.UI/Ox.UI.js b/source/Ox.UI/Ox.UI.js
index fa7eba7e..9dfa0875 100644
--- a/source/Ox.UI/Ox.UI.js
+++ b/source/Ox.UI/Ox.UI.js
@@ -284,7 +284,7 @@ Ox.load.UI = function(options, callback) {
                 //delete callbacks;
             });
             return function(callback) {
-                if (Ox.UI.$window) {
+                if (Ox.$window) {
                     callback();
                 } else {
                     callbacks.push(callback);