diff --git a/examples/timeline/14_group_performance.html b/examples/timeline/14_group_performance.html
index de4d7b47..3cafa6b9 100644
--- a/examples/timeline/14_group_performance.html
+++ b/examples/timeline/14_group_performance.html
@@ -35,7 +35,7 @@
    * http://www.netlobo.com/url_query_string_javascript.html
    */
   function gup( name ) {
-    name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
+    name = name.replace(/[\[]/,"\\[").replace(/[\]]/,"\\]");
     var regexS = "[\\?&]"+name+"=([^&#]*)";
     var regex = new RegExp( regexS );
     var results = regex.exec( window.location.href );