diff --git a/firewall b/firewall
index 0935e63..2840038 100755
--- a/firewall
+++ b/firewall
@@ -169,7 +169,7 @@ start()
 
     if [ $LAN == 1 ]; then
         echo "+ Allow WAN outgoing traffic from lan"
-        $IPTABLES -A FORWARD -i $LAN_INT -o $WAN_INT -p all -m state ESTABLISHED,RELATED,NEW -j ACCEPT
+        $IPTABLES -A FORWARD -i $LAN_INT -o $WAN_INT -p all -m state --state ESTABLISHED,RELATED,NEW -j ACCEPT
         $IPTABLES -A FORWARD -i $WAN_INT -o $LAN_INT -p all -m state --state RELATED,ESTABLISHED -j ACCEPT
 
         echo "+ Allow local network"