diff --git a/sys/conf/Makefile.arm64 b/sys/conf/Makefile.arm64
index d48826197dbd..08b5a5fc90b7 100644
--- a/sys/conf/Makefile.arm64
+++ b/sys/conf/Makefile.arm64
@@ -1,85 +1,85 @@
 # Makefile.arm64 -- with config changes.
 # Copyright 1990 W. Jolitz
 #	from: @(#)Makefile.i386	7.1 5/10/91
 #	from FreeBSD: src/sys/conf/Makefile.i386,v 1.255 2002/02/20 23:35:49
 # $FreeBSD$
 #
 # Makefile for FreeBSD
 #
 # This makefile is constructed from a machine description:
 #	config machineid
 # Most changes should be made in the machine description
 #	/sys/arm64/conf/``machineid''
 # after which you should do
 #	 config machineid
 # Generic makefile changes should be made in
 #	/sys/conf/Makefile.arm64
 # after which config should be rerun for all machines.
 #
 
 # Which version of config(8) is required.
 %VERSREQ=	600012
 
 .if !defined(S)
 S=	../../..
 .endif
 .include "$S/conf/kern.pre.mk"
 
-INCLUDES+= -I$S/contrib/libfdt
+INCLUDES+= -I$S/contrib/libfdt -I$S/gnu/dts/include
 
 # Use a custom SYSTEM_LD command to generate the elf kernel, so we can
 # set the text segment start address, and also strip the "arm mapping
 # symbols" which have names like $a.0 and $d.2; see the document
 # "ELF for the ARM architecture" for more info on the mapping symbols.
 SYSTEM_LD= \
 	${SYSTEM_LD_BASECMD} \
 	    --defsym='text_start=kernbase + SIZEOF_HEADERS' \
 	    -o ${.TARGET} ${SYSTEM_OBJS} vers.o; \
 	$(OBJCOPY) \
 	    --wildcard \
 	    --strip-symbol='$$[adtx]*' \
 	    ${.TARGET}
 
 # Generate the .bin (booti images) kernel as an extra build output.
 # The targets and rules to generate these appear near the end of the file.
 KERNEL_EXTRA+= ${KERNEL_KO}.bin
 KERNEL_EXTRA_INSTALL+= ${KERNEL_KO}.bin
 
 .if !empty(DDB_ENABLED) || !empty(DTR_ENABLED) || !empty(HWPMC_ENABLED)
 CFLAGS += -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
 .endif
 
 %BEFORE_DEPEND
 
 %OBJS
 
 %FILES.c
 
 %FILES.s
 
 %FILES.m
 
 %CLEAN
 CLEAN+=	${KERNEL_KO}.bin
 
 %RULES
 
 .include "$S/conf/kern.post.mk"
 
 # Create a kernel.bin file...
 # Copy the kernel to u-boot's booti image format (the elf headers are
 # stripped and a custom binary head blob is prepended), saving the
 # output in a temp file.  We also strip arm "marker" symbols which are
 # used only by elf toolchains.  Read the symbols from kernel.full and pass
 # them to arm_kernel_boothdr.awk, which generates a binary header blob
 # that goes on the front of the stripped kernel.  Cat the header blob
 # and the temp file together to make the kernel.bin file.
 ${KERNEL_KO}.bin: ${FULLKERNEL}
 	@${OBJCOPY} --wildcard --strip-symbol='$$[adtx]*' \
 	    --output-target=binary ${.ALLSRC} ${.TARGET}.temp
 	@{ readelf -s ${.ALLSRC} | \
 	    ${AWK} -f $S/tools/arm_kernel_boothdr.awk -v hdrtype=v8booti && \
 	    cat ${.TARGET}.temp; \
 	 } > ${.TARGET}
 	@rm ${.TARGET}.temp
 	@echo "created ${.TARGET} from ${.ALLSRC}"