diff --git a/openvpn-install.sh b/openvpn-install.sh
index 2b21209..86f6e1d 100644
--- a/openvpn-install.sh
+++ b/openvpn-install.sh
@@ -328,25 +328,27 @@ crl-verify crl.pem" >> /etc/openvpn/server/server.conf
 		fi
 	else
 		# Create a service to set up persistent iptables rules
+		iptables_path=$(command -v iptables)
+		ip6tables_path=$(command -v ip6tables)
 		echo "[Unit]
 Before=network.target
 [Service]
 Type=oneshot
-ExecStart=/sbin/iptables -t nat -A POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to $ip
-ExecStart=/sbin/iptables -I INPUT -p $protocol --dport $port -j ACCEPT
-ExecStart=/sbin/iptables -I FORWARD -s 10.8.0.0/24 -j ACCEPT
-ExecStart=/sbin/iptables -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
-ExecStop=/sbin/iptables -t nat -D POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to $ip
-ExecStop=/sbin/iptables -D INPUT -p $protocol --dport $port -j ACCEPT
-ExecStop=/sbin/iptables -D FORWARD -s 10.8.0.0/24 -j ACCEPT
-ExecStop=/sbin/iptables -D FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" > /etc/systemd/system/openvpn-iptables.service
+ExecStart=$iptables_path -t nat -A POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to $ip
+ExecStart=$iptables_path -I INPUT -p $protocol --dport $port -j ACCEPT
+ExecStart=$iptables_path -I FORWARD -s 10.8.0.0/24 -j ACCEPT
+ExecStart=$iptables_path -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
+ExecStop=$iptables_path -t nat -D POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to $ip
+ExecStop=$iptables_path -D INPUT -p $protocol --dport $port -j ACCEPT
+ExecStop=$iptables_path -D FORWARD -s 10.8.0.0/24 -j ACCEPT
+ExecStop=$iptables_path -D FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" > /etc/systemd/system/openvpn-iptables.service
 		if [[ -n "$ip6" ]]; then
 			echo "ExecStart=/sbin/ip6tables -t nat -A POSTROUTING -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to $ip6
-ExecStart=/sbin/ip6tables -I FORWARD -s fddd:1194:1194:1194::/64 -j ACCEPT
-ExecStart=/sbin/ip6tables -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
-ExecStop=/sbin/ip6tables -t nat -D POSTROUTING -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to $ip6
-ExecStop=/sbin/ip6tables -D FORWARD -s fddd:1194:1194:1194::/64 -j ACCEPT
-ExecStop=/sbin/ip6tables -D FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" >> /etc/systemd/system/openvpn-iptables.service
+ExecStart=$ip6tables_path -I FORWARD -s fddd:1194:1194:1194::/64 -j ACCEPT
+ExecStart=$ip6tables_path -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
+ExecStop=$ip6tables_path -t nat -D POSTROUTING -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to $ip6
+ExecStop=$ip6tables_path -D FORWARD -s fddd:1194:1194:1194::/64 -j ACCEPT
+ExecStop=$ip6tables_path -D FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" >> /etc/systemd/system/openvpn-iptables.service
 		fi
 		echo "RemainAfterExit=yes
 [Install]