diff --git a/target/linux/lantiq/dts/VG3503J.dts b/target/linux/lantiq/dts/VG3503J.dts
index c7b81252678..1aeb4f19f80 100644
--- a/target/linux/lantiq/dts/VG3503J.dts
+++ b/target/linux/lantiq/dts/VG3503J.dts
@@ -1,3 +1,5 @@
+/dts-v1/;
+
 /include/ "vr9.dtsi"
 
 / {