diff --git a/target/linux/apm821xx/image/Makefile b/target/linux/apm821xx/image/Makefile
index 3458d12d12..2737a32436 100644
--- a/target/linux/apm821xx/image/Makefile
+++ b/target/linux/apm821xx/image/Makefile
@@ -36,6 +36,10 @@ define Build/dtb
 	$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb,,--space $(DTB_SIZE))
 endef
 
+define Build/export-dtb
+	cp $(IMAGE_KERNEL).dtb $@
+endef
+
 define Build/MuImage-initramfs
 	rm -rf $@.fakerd $@.new