diff --git a/doc/xml/multi_array.xml b/doc/xml/multi_array.xml
index 21e6df5..ffe607d 100644
--- a/doc/xml/multi_array.xml
+++ b/doc/xml/multi_array.xml
@@ -1,4 +1,4 @@
-<sect2 id="multi_array">
+<sect2 id="multi_array_class">
 <title><literal>multi_array</literal></title>
 
 <para>