diff --git a/Shorewall-init/ifupdown.sh b/Shorewall-init/ifupdown.sh
index 1f243e198..32df8a26a 100644
--- a/Shorewall-init/ifupdown.sh
+++ b/Shorewall-init/ifupdown.sh
@@ -93,7 +93,11 @@ for PRODUCT in $PRODUCTS; do
     VARDIR=/var/lib/$PRODUCT
     [ -f /etc/$PRODUCT/vardir ] && . /etc/$PRODUCT/vardir
     if [ -x $VARDIR/firewall ]; then
-	/sbin/$PRODUCT -v0 $COMMAND $IFACE
+	  ( . /usr/share/$PRODUCT/lib.base
+	    mutex_on
+	    ${VARDIR}/firewall -V0 $COMMAND $IFACE || echo_notdone
+	    mutex_off
+	  )
     fi
 done