diff --git a/target/linux/mediatek/base-files/lib/preinit/05_set_preinit_iface b/target/linux/mediatek/base-files/lib/preinit/05_set_preinit_iface
index 9daf1ef26b..da9c4e7f40 100644
--- a/target/linux/mediatek/base-files/lib/preinit/05_set_preinit_iface
+++ b/target/linux/mediatek/base-files/lib/preinit/05_set_preinit_iface
@@ -9,7 +9,8 @@ set_preinit_iface() {
 		ip link set eth1 up
 		ifname=eth1
 		;;
-	ubnt,unifi-6-lr)
+	ubnt,unifi-6-lr|\
+	zyxel,nwa50ax-pro)
 		ip link set eth0 up
 		ifname=eth0
 		;;