diff -Nru sks-1.1.5/debian/changelog sks-1.1.5/debian/changelog
--- sks-1.1.5/debian/changelog	2014-10-15 15:10:56.000000000 +0000
+++ sks-1.1.5/debian/changelog	2014-11-04 11:12:20.000000000 +0000
@@ -1,3 +1,9 @@
+sks (1.1.5-3) unstable; urgency=medium
+
+  * fix postrm if old /var/backup does not exist (closes: #718530)
+
+ -- Christoph Martin <christoph.martin@uni-mainz.de>  Tue, 04 Nov 2014 12:12:10 +0100
+
 sks (1.1.5-2) unstable; urgency=low
 
   * use start-stop-daemon with --background and --no-close instead of with
diff -Nru sks-1.1.5/debian/sks.init sks-1.1.5/debian/sks.init
--- sks-1.1.5/debian/sks.init	2014-10-15 13:53:31.000000000 +0000
+++ sks-1.1.5/debian/sks.init	2014-10-17 15:09:38.000000000 +0000
@@ -77,8 +77,8 @@
 	start-stop-daemon --start --quiet --oknodo \
 			  --chuid debian-sks:debian-sks \
 			  --make-pidfile \
-	    		  --background \
-	    		  --no-close \
+			  --background \
+			  --no-close \
 			  --pidfile $SKSDBPID \
 			  --exec $DAEMON -- db
 
@@ -87,8 +87,8 @@
 	start-stop-daemon --start --quiet --oknodo \
 			  --chuid debian-sks:debian-sks \
 			  --make-pidfile \
-	    		  --background \
-	    		  --no-close \
+			  --background \
+			  --no-close \
 			  --pidfile $SKSRECONPID \
 			  --exec $DAEMON -- recon
 
diff -Nru sks-1.1.5/debian/sks.postrm sks-1.1.5/debian/sks.postrm
--- sks-1.1.5/debian/sks.postrm	2014-10-15 14:25:24.000000000 +0000
+++ sks-1.1.5/debian/sks.postrm	2014-11-04 10:44:53.000000000 +0000
@@ -3,7 +3,7 @@
 if [ "$1" = "purge" ]; then
     # logs, db and backup have to be removed according to policy.
     rm -rf /var/log/sks /var/lib/sks /var/backup/sks /var/backups/sks
-    rmdir --ignore-fail-on-non-empty /var/backup
+    [ -d /var/backup ] && rmdir --ignore-fail-on-non-empty /var/backup
 fi
 
 #DEBHELPER#