diff --git a/target/linux/ramips/dts/mt7621_mikrotik_routerboard-760igs.dts b/target/linux/ramips/dts/mt7621_mikrotik_routerboard-760igs.dts
index ed0b4e52cf..8b88cfe0a3 100644
--- a/target/linux/ramips/dts/mt7621_mikrotik_routerboard-760igs.dts
+++ b/target/linux/ramips/dts/mt7621_mikrotik_routerboard-760igs.dts
@@ -49,6 +49,7 @@
 	status = "okay";
 
 	label = "sfp";
+	phy-mode = "rgmii-rxid";
 	phy-handle = <&ephy7>;
 };