diff --git a/WebSocket.js b/WebSocket.js
index 71920dd..5e01c66 100644
--- a/WebSocket.js
+++ b/WebSocket.js
@@ -58,13 +58,6 @@ Ext.define('Ext.ux.data.proxy.WebSocket', {
 
     requires: ['Ext.ux.WebSocket'],
 
-    /**
-     * @property {Object} callbacks
-     * @private
-     * Callbacks stack
-     */
-    callbacks: {},
-
     config: {
         /**
          * @cfg {String} storeId (required) Id of the store associated
@@ -259,6 +252,8 @@ Ext.define('Ext.ux.data.proxy.WebSocket', {
     constructor: function (cfg) {
         var me = this;
 
+        me.callbacks = Ext.apply(cfg.callbacks || {}, {});
+
         // Requires a configuration
         if (Ext.isEmpty(cfg)) {
             Ext.Error.raise('A configuration is needed!');