diff --git a/target/linux/ipq40xx/image/Makefile b/target/linux/ipq40xx/image/Makefile
index a7710cfe05..5851b29875 100644
--- a/target/linux/ipq40xx/image/Makefile
+++ b/target/linux/ipq40xx/image/Makefile
@@ -6,6 +6,7 @@ define Device/Default
 	KERNEL_DEPENDS = $$(wildcard $(DTS_DIR)/$$(DEVICE_DTS).dts)
 	KERNEL_LOADADDR := 0x80208000
 	DEVICE_DTS = $$(SOC)-$(lastword $(subst _, ,$(1)))
+	DEVICE_DTS_CONFIG := config@1
 	IMAGES := sysupgrade.bin
 	IMAGE/sysupgrade.bin = sysupgrade-tar | append-metadata
 	IMAGE/sysupgrade.bin/squashfs :=