diff --git a/debian/changelog b/debian/changelog
index 14b4693..8605dda 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -22,8 +22,9 @@ nut (2.6.4-2) UNRELEASED; urgency=low
   * Also install /bin/upssched-cmd in nut-client package as this script is
     referenced in default upssched.conf config file
   * debian/watch: Update watch file
+  * Be sure that all maintainer scripts are returning 0 at their end
 
- -- Laurent Bigonville <bigon@debian.org>  Sat, 11 Aug 2012 21:02:05 +0200
+ -- Laurent Bigonville <bigon@debian.org>  Sun, 12 Aug 2012 00:07:46 +0200
 
 nut (2.6.4-1) unstable; urgency=high
 
diff --git a/debian/nut-cgi.postrm b/debian/nut-cgi.postrm
index bdfecf0..91be66d 100644
--- a/debian/nut-cgi.postrm
+++ b/debian/nut-cgi.postrm
@@ -44,3 +44,4 @@ esac
 
 #DEBHELPER#
 
+exit 0
diff --git a/debian/nut-client.postinst b/debian/nut-client.postinst
index 9d5cad3..8546a95 100644
--- a/debian/nut-client.postinst
+++ b/debian/nut-client.postinst
@@ -59,3 +59,5 @@ case "$1" in
 esac
 
 #DEBHELPER#
+
+exit 0
diff --git a/debian/nut-server.postinst b/debian/nut-server.postinst
index 7952552..d0ec14b 100644
--- a/debian/nut-server.postinst
+++ b/debian/nut-server.postinst
@@ -76,3 +76,5 @@ case "$1" in
 esac
 
 #DEBHELPER#
+
+exit 0
diff --git a/debian/nut-server.postrm b/debian/nut-server.postrm
index 1ca0437..b95b26f 100644
--- a/debian/nut-server.postrm
+++ b/debian/nut-server.postrm
@@ -47,3 +47,4 @@ esac
 
 #DEBHELPER#
 
+exit 0
diff --git a/debian/nut-server.preinst b/debian/nut-server.preinst
index 72370d5..f3e949f 100644
--- a/debian/nut-server.preinst
+++ b/debian/nut-server.preinst
@@ -8,3 +8,5 @@ if [ "$1" = upgrade ]; then
 fi
 
 #DEBHELPER#
+
+exit 0