diff --git a/debian/backupninja.postinst b/debian/backupninja.postinst
index 89c991db0da55c72bbc62381506e23a789b5340c..159df1f73a2b57a8f38df811f60f9592defdd36d 100644
--- a/debian/backupninja.postinst
+++ b/debian/backupninja.postinst
@@ -1,12 +1,6 @@
 #!/bin/sh
 set -e
 
-# Automatically added by dh_installmenu
-if [ "$1" = "configure" ] 
-then
-        chmod 770 /etc/backup.d
-fi
-
 # dh_installdeb will replace this with shell code automatically
 # generated by other debhelper scripts.
 
diff --git a/debian/rules b/debian/rules
index 61ca5ab74c742309d8f5442e57cc39ff29fd74d8..e92a8c98cdfe23060e9b4ee8107479b13f362f25 100755
--- a/debian/rules
+++ b/debian/rules
@@ -21,6 +21,10 @@ override_dh_auto_install:
 override_dh_compress:
 	dh_compress -Xexample
 
+override_dh_fixperms:
+	dh_fixperms
+	chmod 770 $(TMP)/etc/backup.d
+
 override_dh_installchangelogs:
 	dh_installchangelogs ChangeLog