diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 633f215..14ac073 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -10034,7 +10034,7 @@ SELECT NULLIF(value, '(none)') ...
 
   </sect2>
 
-  <sect2>
+  <sect2 id="functions-least-greatest">
    <title><literal>GREATEST</literal> and <literal>LEAST</literal></title>
 
   <indexterm>