diff --git a/debian/postfwd.postrm b/debian/postfwd.postrm
index eb50815..5c1cb0e 100644
--- a/debian/postfwd.postrm
+++ b/debian/postfwd.postrm
@@ -27,14 +27,17 @@ case "$1" in
 			if USERID=`getent passwd $NUSER | cut -f 3 -d ':'`; then
 				if [ -n "$USERID" ]; then
 					if [ "$FIST_SYSTEM_UID" -le "$USERID" ] && \
-						[ "$USERID" -le "$LAST_SYSTEM_UID" ] && \
-							[ -x /usr/sbin/deluser ]; then
+						[ "$USERID" -le "$LAST_SYSTEM_UID" ]; then
+							if which deluser > /dev/null; then
 								deluser --quiet $NUSER || true
 								# And then remove the group
 								GROUPID=`getent group $NGROUP | cut -f 3 -d ':'`
-								if [ -n "$GROUPID" ] && [ -x /usr/sbin/delgroup ] ;  then
-									delgroup --quiet $NGROUP || true
+								if [ -n "$GROUPID" ]; then
+									if which delgroup > /dev/null; then
+										delgroup --quiet $NGROUP || true
+									fi
 								fi
+							fi
 					fi
 				fi
 			fi