diff --git a/target/linux/lantiq/image/Makefile b/target/linux/lantiq/image/Makefile
index d385cdca7b..4cd9b4ab48 100644
--- a/target/linux/lantiq/image/Makefile
+++ b/target/linux/lantiq/image/Makefile
@@ -63,6 +63,7 @@ define Device/Default
   KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | uImage lzma
   FILESYSTEMS := squashfs
   IMAGE_SIZE :=
+  SOC := $(DEFAULT_SOC)
   DEVICE_DTS = $$(SOC)_$(1)
   SUPPORTED_DEVICES := $(subst _,$(comma),$(1))
   IMAGES := sysupgrade.bin