diff --git a/mod/chat/gui_ajax/module.js b/mod/chat/gui_ajax/module.js
index fc4897433dd..0b4761fbb6d 100644
--- a/mod/chat/gui_ajax/module.js
+++ b/mod/chat/gui_ajax/module.js
@@ -37,7 +37,7 @@ M.mod_chat_ajax.init = function(Y, cfg) {
         init : function(cfg) {
             this.cfg = cfg;
             this.cfg.req_count = this.cfg.req_count || 0;
-            this.layout = new YAHOO.widget.Layout({
+            this.layout = new Y.YUI2.widget.Layout({
                 units : [
                      {position: 'right', width: 180, resize: true, gutter: '5px', scroll: true, body: 'chat-userlist', animate: false},
                      {position: 'bottom', height: 42, resize: false, body: 'chat-input-area', gutter: '5px', collapse: false, resize: false},
@@ -123,7 +123,7 @@ M.mod_chat_ajax.init = function(Y, cfg) {
 
             return;
             */
-            this.thememenu = new YAHOO.widget.Menu('basicmenu', {xy:[0,0]});
+            this.thememenu = new Y.YUI2.widget.Menu('basicmenu', {xy:[0,0]});
             this.thememenu.addItems([
                 {text: "Bubble", url: this.cfg.chaturl+'&theme=bubble'},
                 {text: "Compact", url: this.cfg.chaturl+'&theme=compact'}