diff --git a/language/operators.xml b/language/operators.xml
index 50f8c72b24..3e7042c5f7 100644
--- a/language/operators.xml
+++ b/language/operators.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.96 $ -->
+<!-- $Revision: 1.97 $ -->
  <chapter id="language.operators">
   <title>Operators</title>
   <simpara>
@@ -1122,7 +1122,7 @@ var_dump($a === $b); // bool(false)
     <literal>instanceof</literal>. 
    </simpara>
    <informalexample>
-    <programlisting>
+    <programlisting role="php">
 <![CDATA[
 <?php
 class A { }