diff --git a/src/js/jquery.select2.js b/src/js/jquery.select2.js
index b087c94b..8b578fc1 100644
--- a/src/js/jquery.select2.js
+++ b/src/js/jquery.select2.js
@@ -17,7 +17,7 @@ define([
 
       if (typeof options === 'object') {
         this.each(function () {
-          var instanceOptions = $.extend({}, options, true);
+          var instanceOptions = $.extend(true, {}, options);
 
           var instance = new Select2($(this), instanceOptions);
         });