diff --git a/bitbake/doc/user-manual/user-manual-metadata.xml b/bitbake/doc/user-manual/user-manual-metadata.xml
index 69d103dcac..d191d3589a 100644
--- a/bitbake/doc/user-manual/user-manual-metadata.xml
+++ b/bitbake/doc/user-manual/user-manual-metadata.xml
@@ -779,7 +779,7 @@
             </section>
         </section>
 
-        <section id='classes'>
+        <section id='metadata-classes'>
             <title>Classes</title>
 
             <para>