diff --git a/documentation/adt-manual/adt-intro.xml b/documentation/adt-manual/adt-intro.xml
index 93737826b5..47e4c3685e 100644
--- a/documentation/adt-manual/adt-intro.xml
+++ b/documentation/adt-manual/adt-intro.xml
@@ -22,7 +22,7 @@
     and an introduction to the Eclipse Yocto Plug-in. 
 </para>
 
-<section id='book-intro'>
+<section id='adt-intro-section'>
     <title>The Application Development Toolkit (ADT)</title>
 
     <para>
diff --git a/documentation/kernel-manual/kernel-doc-intro.xml b/documentation/kernel-manual/kernel-doc-intro.xml
index 3eec4a6523..164f8c3940 100644
--- a/documentation/kernel-manual/kernel-doc-intro.xml
+++ b/documentation/kernel-manual/kernel-doc-intro.xml
@@ -6,7 +6,7 @@
 
 <title>Yocto Project Kernel Architecture and Use Manual</title>
 
-<section id='book-intro'>
+<section id='kernel-intro-section'>
     <title>Introduction</title>
     <para>
         The Yocto Project presents kernels as a fully patched, history-clean Git