diff --git a/course/groups-edit.html b/course/groups-edit.html
index ad4b2e44dbf..d72a22b6506 100755
--- a/course/groups-edit.html
+++ b/course/groups-edit.html
@@ -1,5 +1,5 @@
 <script type="text/javascript">
-<!-- Begin
+//<![CDATA[
 <?php 
     $roleoptions = array(0 => get_string('all'));
     $roles = get_all_roles();
@@ -77,7 +77,7 @@ function groupWindow(selectgroup) {
 }
 
 
-// end hiding script -->
+//]]>
 </script>
 
         <form name="rolesform1" action="groups.php" method="get">