diff --git a/Shorewall/compiler b/Shorewall/compiler
index 5f06d7984..44470aaed 100755
--- a/Shorewall/compiler
+++ b/Shorewall/compiler
@@ -8134,7 +8134,7 @@ stop_firewall() {
 
 	if [ -f /var/lib/shorewall/nat ]; then
 	    while read external interface; do
-		qt ip addr del $external dev $interface
+		qt ip addr del $external dev \$interface
 	    done < /var/lib/shorewall/nat
 
 	    rm -f {/var/lib/shorewall}/nat