diff --git a/luci-app-omr-bypass/root/etc/init.d/omr-bypass b/luci-app-omr-bypass/root/etc/init.d/omr-bypass
index 3ef734ef7..f04d5fb61 100755
--- a/luci-app-omr-bypass/root/etc/init.d/omr-bypass
+++ b/luci-app-omr-bypass/root/etc/init.d/omr-bypass
@@ -165,6 +165,7 @@ _bypass_proto() {
 _intf_rule() {
 	local intf
 	config_get intf $1 ifname
+	[ -z "$ifname" ] && ifname=$(ifstatus "$1" | jsonfilter -q -e '@["l3_device"]')
 	count=$((count+1))
 	local mode
 	config_get mode $1 multipath "off"