diff --git a/tests/s5.fancy.html b/tests/s5.fancy.html
index b60479eee..39188bb1e 100644
--- a/tests/s5.fancy.html
+++ b/tests/s5.fancy.html
@@ -17,7 +17,8 @@
   <link rel="stylesheet" href="ui/default/opera.css" type="text/css" media="projection" id="operaFix" />
   <!-- S5 JS -->
   <script src="ui/default/slides.js" type="text/javascript"></script>
-  <script type="text/javascript">/*
+  <script type="text/javascript">/*<![CDATA[*/
+  /*
   LaTeXMathML.js from http://math.etsu.edu/LaTeXMathML/
   Adapted by Jeff Knisely and Douglas Woodall from ASCIIMathML.js v. 1.4.7,
   (c) 2005 Peter Jipsen http://www.chapman.edu/~jipsen.
@@ -215,6 +216,7 @@
   {existing();generic();};}
   else
   {window.onload=generic;}}
+  /*]]>*/
   </script>
 </head>
 <body>
