diff --git a/doc/cs/index.docbook b/doc/cs/index.docbook
index d2863a6..1917b38 100644
--- a/doc/cs/index.docbook
+++ b/doc/cs/index.docbook
@@ -1,8 +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 app "<application>KPowersave</application>">
   <!ENTITY apprelease " ">
   <!-- chapters in separate docbook files -->
diff --git a/doc/de/index.docbook b/doc/de/index.docbook
index 4cabd50..89361d3 100644
--- a/doc/de/index.docbook
+++ b/doc/de/index.docbook
@@ -1,8 +1,6 @@
 <?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 app "<application>KPowersave</application>">
   <!ENTITY apprelease " ">
   <!-- chapters in separate docbook files -->
diff --git a/doc/en/index.docbook b/doc/en/index.docbook
index e8d575a..9e09cad 100644
--- a/doc/en/index.docbook
+++ b/doc/en/index.docbook
@@ -1,8 +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 app "<application>KPowersave</application>">
   <!ENTITY apprelease " ">
   <!-- chapters in separate docbook files -->
diff --git a/doc/fi/index.docbook b/doc/fi/index.docbook
index e776691..a70c00a 100644
--- a/doc/fi/index.docbook
+++ b/doc/fi/index.docbook
@@ -1,8 +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 app "<application>KPowersave</application>">
   <!ENTITY apprelease " ">
   <!-- chapters in separate docbook files -->
diff --git a/doc/hu/index.docbook b/doc/hu/index.docbook
index 19f741d..bbe8003 100644
--- a/doc/hu/index.docbook
+++ b/doc/hu/index.docbook
@@ -1,8 +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 app "<application>KPowersave</application>">
   <!ENTITY apprelease " ">
   <!-- chapters in separate docbook files -->
diff --git a/doc/nb/index.docbook b/doc/nb/index.docbook
index e9b1689..5134350 100644
--- a/doc/nb/index.docbook
+++ b/doc/nb/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 app "<application>KPowersave</application>">
 <!ENTITY apprelease " ">
 <!-- chapters in separate docbook files --><!-- book related entities --><!ENTITY kappname "KPowersave">