diff --git a/target/linux/lantiq/dts/TDW89X0.dtsi b/target/linux/lantiq/dts/TDW89X0.dtsi
index d27aed5cf8dbeaf845d834c5a90a6bbc1d552450..e4094ec6102848e3a0eb82cb031a7b5c8c89fc24 100644
--- a/target/linux/lantiq/dts/TDW89X0.dtsi
+++ b/target/linux/lantiq/dts/TDW89X0.dtsi
@@ -180,6 +180,7 @@
 		ath,mac-offset = <0xf100>;
 		ath,mac-increment;
 		ath,led-pin = <0>;
+		ath,disable-5ghz;
 	};
 
 	gpio-keys-polled {