diff --git a/reference/mysqli/constants.xml b/reference/mysqli/constants.xml
index 3fdceac88e..939c943272 100644
--- a/reference/mysqli/constants.xml
+++ b/reference/mysqli/constants.xml
@@ -2,7 +2,7 @@
 <!-- $Revision$ -->
 <appendix xml:id="mysqli.constants" xmlns="http://docbook.org/ns/docbook">
  &reftitle.constants;
- <section>
+ &extension.constants;
   <variablelist>
    <varlistentry xml:id="constantmysqli-read-default-group">
     <term><constant>MYSQLI_READ_DEFAULT_GROUP</constant></term>
@@ -691,7 +691,6 @@
    </varlistentry>
 
   </variablelist>
- </section>
 </appendix>