diff --git a/firewall/firewall-add b/firewall/firewall-add
index 5c180fb..1b18792 100755
--- a/firewall/firewall-add
+++ b/firewall/firewall-add
@@ -188,7 +188,9 @@ if [[ "$PREROUTING" == "true" ]] || [[ "$POSTROUTING" == "true" ]] || [[ "$HOST"
 	
 		debug "iptables: "$IPTABLES;
 	
+		if [[ "$PREROUTING" == "true" ]] ; then
 		prerouting;
+		fi
 
 		if [[ "$POSTROUTING" == "true" ]] ; then
 			postrouting;