diff --git a/language/predefined/interfaces.xml b/language/predefined/interfaces.xml
index 7e44f7bd65..b53fb122c2 100644
--- a/language/predefined/interfaces.xml
+++ b/language/predefined/interfaces.xml
@@ -2,11 +2,12 @@
 <!-- $Revision$ -->
 
 <part xml:id="reserved.interfaces" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
- <title>Predefined Interfaces</title>
+ <title>Predefined Interfaces and Classes</title>
 
  <partintro>
   <para>
-   See also the <link linkend="spl.interfaces">SPL Interfaces</link>
+   See also the <link linkend="spl.interfaces">SPL Interfaces</link> and <link
+   linkend="reserved.classes">reserved classes</link>.
   </para>
  </partintro>