diff --git a/arch/h8300/boot/dts/Makefile b/arch/h8300/boot/dts/Makefile
index 0abaf1ad830eeab6db9f9bebed4f8f3784831d66..6c08467c6a3ab56e9c3b6a323421f7fd2b706317 100644
--- a/arch/h8300/boot/dts/Makefile
+++ b/arch/h8300/boot/dts/Makefile
@@ -8,5 +8,8 @@ dtb-$(CONFIG_H8300H_SIM) := h8300h_sim.dtb
 dtb-$(CONFIG_H8S_SIM) := h8s_sim.dtb
 dtb-$(CONFIG_H8S_EDOSK2674) := edosk2674.dtb
 
+dtstree		:= $(srctree)/$(src)
+dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
+
 always	    := $(dtb-y)
 clean-files := *.dtb.S *.dtb