diff --git a/xos/observers/vcpe/templates/start-vcpe.sh.j2 b/xos/observers/vcpe/templates/start-vcpe.sh.j2
index d06d745..b01681c 100755
--- a/xos/observers/vcpe/templates/start-vcpe.sh.j2
+++ b/xos/observers/vcpe/templates/start-vcpe.sh.j2
@@ -12,7 +12,7 @@
 fi
 
 # Set up networking via pipework
-docker exec vcpe ifconfig eth0 >> /dev/null || pipework eth3 -i eth0 vcpe {{ wan_ip }}/17@192.168.128.1
+docker exec vcpe ifconfig eth0 >> /dev/null || pipework eth3 -i eth0 vcpe {{ wan_ip }}/17@192.168.128.1 {{ wan_mac }}
 docker exec vcpe ifconfig eth1 >> /dev/null || pipework eth2 -i eth1 vcpe 192.168.0.1/24 @{{ vlan_ids[0] }}
 
 # Now can start up dnsmasq