diff --git a/Shorewall-init/shorewall-init.service b/Shorewall-init/shorewall-init.service
index 01d1b8480..51ccf5357 100644
--- a/Shorewall-init/shorewall-init.service
+++ b/Shorewall-init/shorewall-init.service
@@ -7,7 +7,7 @@
 Description=Shorewall IPv4 firewall (bootup security)
 Before=network-pre.target
 Wants=network-pre.target
-Conflicts=firewalld.service
+Conflicts=iptables.service firewalld.service
 
 [Service]
 Type=oneshot