diff --git a/source/Ox.UI/Ox.UI.js b/source/Ox.UI/Ox.UI.js
index 710a03be..29040e22 100644
--- a/source/Ox.UI/Ox.UI.js
+++ b/source/Ox.UI/Ox.UI.js
@@ -214,7 +214,7 @@ Ox.load.UI = function(options, callback) {
                     var dfd = new $.Deferred();
                     promises.push(dfd.promise());
                     if (/\.json$/.test(file)) {
-                        Ox.getJSON(Ox.PATH + file, function(data) {
+                        Ox.getJSON(Ox.PATH + file + '?' + Ox.VERSION, function(data) {
                             var theme = /\/(\w+)\.json$/.exec(file)[1];
                             themes[theme] = data;
                             dfd.resolve();