diff --git a/language/control-structures.xml b/language/control-structures.xml
index bc25c2a665..fe67f329c2 100644
--- a/language/control-structures.xml
+++ b/language/control-structures.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.88 $ -->
- <chapter id="control-structures">
+<!-- $Revision: 1.89 $ -->
+ <chapter id="language.control-structures">
   <title>Control Structures</title>
 
   <simpara>
diff --git a/language/functions.xml b/language/functions.xml
index 6a3ab2fa66..fbd20b0014 100644
--- a/language/functions.xml
+++ b/language/functions.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.44 $ -->
- <chapter id="functions">
+<!-- $Revision: 1.45 $ -->
+ <chapter id="language.functions">
   <title>Functions</title>
 
   <sect1 id="functions.user-defined">