diff --git a/man/busctl.xml b/man/busctl.xml
index c47a329fea..f56e3c14f5 100644
--- a/man/busctl.xml
+++ b/man/busctl.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/coredump.conf.xml b/man/coredump.conf.xml
index 0c9160e2cc..5eb5c5f199 100644
--- a/man/coredump.conf.xml
+++ b/man/coredump.conf.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
         "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
diff --git a/man/kernel-install.xml b/man/kernel-install.xml
index 178ad1d2bd..d4d01807a4 100644
--- a/man/kernel-install.xml
+++ b/man/kernel-install.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_creds_get_pid.xml b/man/sd_bus_creds_get_pid.xml
index 22eb6e5462..e0f8909e87 100644
--- a/man/sd_bus_creds_get_pid.xml
+++ b/man/sd_bus_creds_get_pid.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_creds_new_from_pid.xml b/man/sd_bus_creds_new_from_pid.xml
index f3ea1defe1..1935d94c7d 100644
--- a/man/sd_bus_creds_new_from_pid.xml
+++ b/man/sd_bus_creds_new_from_pid.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_error.xml b/man/sd_bus_error.xml
index aba80832d2..d1929c217a 100644
--- a/man/sd_bus_error.xml
+++ b/man/sd_bus_error.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_message_append.xml b/man/sd_bus_message_append.xml
index 961ab53c5f..e3de69873b 100644
--- a/man/sd_bus_message_append.xml
+++ b/man/sd_bus_message_append.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_message_append_array.xml b/man/sd_bus_message_append_array.xml
index ab1fcd26cb..fe81affdc4 100644
--- a/man/sd_bus_message_append_array.xml
+++ b/man/sd_bus_message_append_array.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_message_append_basic.xml b/man/sd_bus_message_append_basic.xml
index 2594134d87..bd25a4a99d 100644
--- a/man/sd_bus_message_append_basic.xml
+++ b/man/sd_bus_message_append_basic.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_message_append_string_memfd.xml b/man/sd_bus_message_append_string_memfd.xml
index d18ca1a858..5b4a792cd7 100644
--- a/man/sd_bus_message_append_string_memfd.xml
+++ b/man/sd_bus_message_append_string_memfd.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_message_append_strv.xml b/man/sd_bus_message_append_strv.xml
index 898a7c464b..1767f73f7f 100644
--- a/man/sd_bus_message_append_strv.xml
+++ b/man/sd_bus_message_append_strv.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_negotiate_fds.xml b/man/sd_bus_negotiate_fds.xml
index fb313e34fb..3d7a20b2ff 100644
--- a/man/sd_bus_negotiate_fds.xml
+++ b/man/sd_bus_negotiate_fds.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_new.xml b/man/sd_bus_new.xml
index 8c56dc0d20..5c2fa5c7f9 100644
--- a/man/sd_bus_new.xml
+++ b/man/sd_bus_new.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_open_user.xml b/man/sd_bus_open_user.xml
index 76e3ce8bd3..e7a765962a 100644
--- a/man/sd_bus_open_user.xml
+++ b/man/sd_bus_open_user.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_bus_path_encode.xml b/man/sd_bus_path_encode.xml
index c96b0ac805..55a6fd0056 100644
--- a/man/sd_bus_path_encode.xml
+++ b/man/sd_bus_path_encode.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_event_add_child.xml b/man/sd_event_add_child.xml
index 012fdb6a1a..9d943f8676 100644
--- a/man/sd_event_add_child.xml
+++ b/man/sd_event_add_child.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_event_add_defer.xml b/man/sd_event_add_defer.xml
index dcc76cd48f..d68a36c187 100644
--- a/man/sd_event_add_defer.xml
+++ b/man/sd_event_add_defer.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_event_add_signal.xml b/man/sd_event_add_signal.xml
index 6584268818..f39751d681 100644
--- a/man/sd_event_add_signal.xml
+++ b/man/sd_event_add_signal.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_event_add_time.xml b/man/sd_event_add_time.xml
index 77b8828bb3..31d1013552 100644
--- a/man/sd_event_add_time.xml
+++ b/man/sd_event_add_time.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_event_get_fd.xml b/man/sd_event_get_fd.xml
index f60d807136..ff2f5f8668 100644
--- a/man/sd_event_get_fd.xml
+++ b/man/sd_event_get_fd.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_event_new.xml b/man/sd_event_new.xml
index d392ed30b0..f2ad782716 100644
--- a/man/sd_event_new.xml
+++ b/man/sd_event_new.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/sd_event_set_name.xml b/man/sd_event_set_name.xml
index 551eef3de7..627ebe479e 100644
--- a/man/sd_event_set_name.xml
+++ b/man/sd_event_set_name.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/standard-options.xml b/man/standard-options.xml
index 7ae8a965c2..ec9146d8b5 100644
--- a/man/standard-options.xml
+++ b/man/standard-options.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0"?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
           "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
diff --git a/man/sysctl.d.xml b/man/sysctl.d.xml
index 7b51b68cc6..922b5c4eaa 100644
--- a/man/sysctl.d.xml
+++ b/man/sysctl.d.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0"?>
-<!--*-nxml-*-->
+<?xml version="1.0"?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
   This file is part of systemd.
diff --git a/man/systemctl.xml b/man/systemctl.xml
index a5c835f549..033160329e 100644
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/systemd-activate.xml b/man/systemd-activate.xml
index f584aeb567..3793331aa7 100644
--- a/man/systemd-activate.xml
+++ b/man/systemd-activate.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/systemd-bus-proxyd.xml b/man/systemd-bus-proxyd.xml
index f9400f034d..2c7764047b 100644
--- a/man/systemd-bus-proxyd.xml
+++ b/man/systemd-bus-proxyd.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/systemd-bus-proxyd@.service.xml b/man/systemd-bus-proxyd@.service.xml
index f8e457696b..aab6691db9 100644
--- a/man/systemd-bus-proxyd@.service.xml
+++ b/man/systemd-bus-proxyd@.service.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/systemd-coredump.xml b/man/systemd-coredump.xml
index b83b278620..6a7ced19a6 100644
--- a/man/systemd-coredump.xml
+++ b/man/systemd-coredump.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
         "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/systemd-journal-gatewayd.service.xml b/man/systemd-journal-gatewayd.service.xml
index 01b2552015..7420b59c95 100644
--- a/man/systemd-journal-gatewayd.service.xml
+++ b/man/systemd-journal-gatewayd.service.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/systemd-journal-remote.xml b/man/systemd-journal-remote.xml
index 08c0283d82..ef998355ce 100644
--- a/man/systemd-journal-remote.xml
+++ b/man/systemd-journal-remote.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/systemd-journal-upload.xml b/man/systemd-journal-upload.xml
index b4422f2a17..607167d274 100644
--- a/man/systemd-journal-upload.xml
+++ b/man/systemd-journal-upload.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/systemd-run.xml b/man/systemd-run.xml
index c92c324105..28a9878b83 100644
--- a/man/systemd-run.xml
+++ b/man/systemd-run.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
diff --git a/man/systemd-sleep.conf.xml b/man/systemd-sleep.conf.xml
index d0ea6d829b..d724960678 100644
--- a/man/systemd-sleep.conf.xml
+++ b/man/systemd-sleep.conf.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
diff --git a/man/systemd-udevd.service.xml b/man/systemd-udevd.service.xml
index 6174204aac..f467cd2179 100644
--- a/man/systemd-udevd.service.xml
+++ b/man/systemd-udevd.service.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?>
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
diff --git a/man/systemd.resource-control.xml b/man/systemd.resource-control.xml
index 218946d4ee..b050a17523 100644
--- a/man/systemd.resource-control.xml
+++ b/man/systemd.resource-control.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
diff --git a/man/systemd.scope.xml b/man/systemd.scope.xml
index e047f4b7b4..5d03d907a7 100644
--- a/man/systemd.scope.xml
+++ b/man/systemd.scope.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
diff --git a/man/systemd.slice.xml b/man/systemd.slice.xml
index f82e6c3ba0..987df50e1e 100644
--- a/man/systemd.slice.xml
+++ b/man/systemd.slice.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
diff --git a/man/udev.xml b/man/udev.xml
index 87c16c78ee..1113a66a2a 100644
--- a/man/udev.xml
+++ b/man/udev.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?>
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
diff --git a/man/udevadm.xml b/man/udevadm.xml
index fd17f40be3..90d3246459 100644
--- a/man/udevadm.xml
+++ b/man/udevadm.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?>
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">