diff --git a/doc/kcpuload/index.docbook b/doc/kcpuload/index.docbook
index 958ba45..0aed561 100644
--- a/doc/kcpuload/index.docbook
+++ b/doc/kcpuload/index.docbook
@@ -1,5 +1,5 @@
 <?xml version="1.0" ?>
-<!DOCTYPE book PUBLIC "-//KDE//DTD DocBook XML V4.1.2-Based Variant V1.1//EN" "dtd/kdex.dtd" [
+<!DOCTYPE book PUBLIC "-//KDE//DTD DocBook XML V4.2-Based Variant V1.1//EN" "dtd/kdex.dtd" [
   <!ENTITY kappname "&kcpuload;">
   <!ENTITY package "kdeextragear-2">
   <!ENTITY kcpuload "<application>KCPULoad</application>">