diff --git a/target/linux/ath79/dts/ar9331_teltonika_rut230-v1.dts b/target/linux/ath79/dts/ar9331_teltonika_rut230-v1.dts
index 192a7d2a045..73a6cc52ca5 100644
--- a/target/linux/ath79/dts/ar9331_teltonika_rut230-v1.dts
+++ b/target/linux/ath79/dts/ar9331_teltonika_rut230-v1.dts
@@ -36,6 +36,7 @@
 
 		sim-tray {
 			label = "sim-tray";
+			linux,input-type = <EV_SW>;
 			linux,code = <BTN_1>;
 			gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
 			debounce-interval = <60>;