diff --git a/reference/reflection/extending.xml b/reference/reflection/extending.xml
index 779a540732..ceff411ed5 100644
--- a/reference/reflection/extending.xml
+++ b/reference/reflection/extending.xml
@@ -12,7 +12,7 @@
  </para>
  <example>
   <title>Extending the built-in classes</title>
-  <programlisting role="shell">
+  <programlisting role="php">
 <![CDATA[
 <?php
 /**