diff --git a/reference/session/sessionhandler.xml b/reference/session/sessionhandler.xml
index 6298393e95..4235ee2812 100644
--- a/reference/session/sessionhandler.xml
+++ b/reference/session/sessionhandler.xml
@@ -97,7 +97,7 @@
     <programlisting role="php">
 <![CDATA[
 <?php
-class EncryptedSessionHandler implements SessionHandler
+class EncryptedSessionHandler extends SessionHandler
 {
     private $key;