diff --git a/target/linux/lantiq/dts/ar9.dtsi b/target/linux/lantiq/dts/ar9.dtsi
index 0be95c3711e..9feb8a0e512 100644
--- a/target/linux/lantiq/dts/ar9.dtsi
+++ b/target/linux/lantiq/dts/ar9.dtsi
@@ -40,7 +40,7 @@
 	sram@1F000000 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "lantiq,sram";
+		compatible = "lantiq,sram", "simple-bus";
 		reg = <0x1F000000 0x800000>;
 		ranges = <0x0 0x1F000000 0x7FFFFF>;