diff --git a/include/image.mk b/include/image.mk
index 5e4dfb28e9..9f583ca7ad 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -14,6 +14,7 @@ include $(INCLUDE_DIR)/host.mk
 override MAKEFLAGS=
 override MAKE:=$(SUBMAKE)
 KDIR=$(KERNEL_BUILD_DIR)
+DTS_DIR:=$(LINUX_DIR)/arch/$(ARCH)/boot/dts/
 
 IMG_PREFIX:=openwrt-$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))