diff --git a/target/linux/ramips/dts/mt7621_tplink_archer-ax53-v1.dts b/target/linux/ramips/dts/mt7621_tplink_archer-ax53-v1.dts
index bd704713c0..25c72538c9 100644
--- a/target/linux/ramips/dts/mt7621_tplink_archer-ax53-v1.dts
+++ b/target/linux/ramips/dts/mt7621_tplink_archer-ax53-v1.dts
@@ -167,11 +167,6 @@
 	nvmem-cell-names = "mac-address";
 };
 
-&mdio {
-	ethphy4: ethernet-phy@4 {
-		reg = <4>;
-	};
-};
 
 &switch0 {
 	ports {