diff --git a/target/linux/ramips/dts/mt7621.dtsi b/target/linux/ramips/dts/mt7621.dtsi
index d68ddf3bc6..23b5455d68 100644
--- a/target/linux/ramips/dts/mt7621.dtsi
+++ b/target/linux/ramips/dts/mt7621.dtsi
@@ -342,6 +342,7 @@
 		compatible = "mediatek,mt8173-xhci";
 		reg = <0x1e1c0000 0x1000
 		       0x1e1d0700 0x0100>;
+		reg-names = "mac", "ippc";
 
 		clocks = <&sysclock>;
 		clock-names = "sys_ck";