diff --git a/target/linux/ramips/dts/mt7621_elecom_wrc-gst.dtsi b/target/linux/ramips/dts/mt7621_elecom_wrc-gst.dtsi
index 567552d8d5..3bfdbe398c 100644
--- a/target/linux/ramips/dts/mt7621_elecom_wrc-gst.dtsi
+++ b/target/linux/ramips/dts/mt7621_elecom_wrc-gst.dtsi
@@ -11,6 +11,7 @@
 		led-failsafe = &led_power_green;
 		led-running = &led_power_green;
 		led-upgrade = &led_power_green;
+		label-mac-device = &wan;
 	};
 
 	chosen {
@@ -92,7 +93,7 @@
 
 &switch0 {
 	ports {
-		port@0 {
+		wan: port@0 {
 			status = "okay";
 			label = "wan";
 			mtd-mac-address = <&factory 0xe006>;