diff --git a/debian/resources/iptables.sh b/debian/resources/iptables.sh
index 99043c3..50bb827 100755
--- a/debian/resources/iptables.sh
+++ b/debian/resources/iptables.sh
@@ -13,8 +13,11 @@ verbose "Configuring IPTables"
 iptables -A INPUT -i lo -j ACCEPT
 iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
 iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "friendly-scanner" --algo bm
+iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "friendly-scanner" --algo bm
 iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "sipcli/" --algo bm
+iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "sipcli/" --algo bm
 iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "VaxSIPUserAgent/" --algo bm
+iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "VaxSIPUserAgent/" --algo bm
 iptables -A INPUT -p tcp --dport 22 -j ACCEPT
 iptables -A INPUT -p tcp --dport 80 -j ACCEPT
 iptables -A INPUT -p tcp --dport 443 -j ACCEPT