diff --git a/LDP/guide/docbook/LDP-Author-Guide/x2docbook.xml b/LDP/guide/docbook/LDP-Author-Guide/x2docbook.xml
index 29a29196..19211211 100644
--- a/LDP/guide/docbook/LDP-Author-Guide/x2docbook.xml
+++ b/LDP/guide/docbook/LDP-Author-Guide/x2docbook.xml
@@ -259,6 +259,8 @@ to find conversion tools.
 
 	</section>
 
+<section id="docbook2docbook">
+<title>DocBook to DocBook Transformations</title>
     <section id="xmldifferences">
       <title>XML and SGML DocBook</title>
       <para>
@@ -459,4 +461,6 @@ to find conversion tools.
 
     </section>
   </section>
+</section>
+  
 </appendix>