Index: head/sys/boot/efi/fdt/Makefile
===================================================================
--- head/sys/boot/efi/fdt/Makefile	(revision 281524)
+++ head/sys/boot/efi/fdt/Makefile	(revision 281525)
@@ -1,36 +1,36 @@
 # $FreeBSD$
 
 .include <src.opts.mk>
 
 .PATH: ${.CURDIR}/../../common
 
 LIB=		efi_fdt
 INTERNALLIB=
 
 SRCS=		efi_fdt.c
 
 CFLAGS+=	-ffreestanding -msoft-float
-.if ${MACHINE_CPUARCH} == "arm64"
+.if ${MACHINE_CPUARCH} == "aarch64"
 CFLAGS+=	-mgeneral-regs-only
 .endif
 
 CFLAGS+=	-I${.CURDIR}/../../../../lib/libstand/
 
 # EFI library headers
 CFLAGS+=	-I${.CURDIR}/../include
 CFLAGS+=	-I${.CURDIR}/../include/${MACHINE}
 
 # libfdt headers
 CFLAGS+=	-I${.CURDIR}/../../fdt
 
 # Pick up the bootstrap header for some interface items
 CFLAGS+=	-I${.CURDIR}/../../common -I${.CURDIR}/../../.. -I.
 
 machine:
 	ln -sf ${.CURDIR}/../../../${MACHINE}/include machine
 
 CLEANFILES+=	machine
 
 .include <bsd.lib.mk>
 
 beforedepend ${OBJS}: machine