diff --git a/firewall/firewall-add b/firewall/firewall-add
index 1dcdbc6..6ffacd5 100755
--- a/firewall/firewall-add
+++ b/firewall/firewall-add
@@ -84,21 +84,25 @@ COUNT_SOURCE_PORT=$(set |grep SOURCE_PORT |wc -l)
 COUNT_TARGET_IP=$(set |grep TARGET_IP |wc -l)
 COUNT_TARGET_PORT=$(set |grep TARGET_PORT |wc -l)
 
+if [ "$COUNT_SOURCE_IP" == 0 ] ; then COUNT_SOURCE_IP=1 ; fi
 for source_ip_index in $(seq 1 $COUNT_SOURCE_IP) ; do
 	if set |grep SOURCE_IP_ ; then
 		SOURCE_IP=$(eval "echo \${"SOURCE_IP_$source_ip_index"}")
 	fi
-
+	
+	if [ "$COUNT_SOURCE_PORT" == 0 ] ; then COUNT_SOURCE_PORT=1 ; fi
 	for source_port_index in $(seq 1 $COUNT_SOURCE_PORT) ; do
 		if set |grep SOURCE_PORT_ ; then
 			SOURCE_PORT=$(eval "echo \${"SOURCE_PORT_$source_port_index"}")
 		fi
 	
+		if [ "$COUNT_TARGET_IP" == 0 ] ; then COUNT_TARGET_IP=1 ; fi
 		for target_ip_index in $(seq 1 $COUNT_TARGET_IP) ; do
 			if set |grep TARGET_IP_ ; then
 				TARGET_IP=$(eval "echo \${"TARGET_IP_$target_ip_index"}")                 
 			fi                                                                               
 	
+			if [ "$COUNT_TARGET_PORT" == 0 ] ; then COUNT_TARGET_PORT=1 ; fi
 			for target_port_index in $(seq 1 $COUNT_TARGET_PORT) ; do
 				if set |grep TARGET_PORT_ ; then
 					TARGET_PORT=$(eval "echo \${"TARGET_PORT_$target_port_index"}")