diff --git a/openvpn-install.sh b/openvpn-install.sh
index 1e24c9a..279a1e7 100644
--- a/openvpn-install.sh
+++ b/openvpn-install.sh
@@ -138,7 +138,7 @@ if [[ -e /etc/openvpn/server.conf ]]; then
 					firewall-cmd --permanent --zone=public --remove-port=$PORT/udp
 					firewall-cmd --permanent --zone=trusted --remove-source=10.8.0.0/24
 				fi
-				if iptables -L | grep -qE 'REJECT|DROP'; then
+				if iptables -L -n | grep -qE 'REJECT|DROP'; then
 					sed -i "/iptables -I INPUT -p udp --dport $PORT -j ACCEPT/d" $RCLOCAL
 					sed -i "/iptables -I FORWARD -s 10.8.0.0\/24 -j ACCEPT/d" $RCLOCAL
 					sed -i "/iptables -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT/d" $RCLOCAL
@@ -310,7 +310,7 @@ crl-verify crl.pem" >> /etc/openvpn/server.conf
 		firewall-cmd --permanent --zone=public --add-port=$PORT/udp
 		firewall-cmd --permanent --zone=trusted --add-source=10.8.0.0/24
 	fi
-	if iptables -L | grep -qE 'REJECT|DROP'; then
+	if iptables -L -n | grep -qE 'REJECT|DROP'; then
 		# If iptables has at least one REJECT rule, we asume this is needed.
 		# Not the best approach but I can't think of other and this shouldn't
 		# cause problems.