diff --git a/share/mk/bsd.cpu.mk b/share/mk/bsd.cpu.mk
index 86f9aed0d5db..a748c6959f3c 100644
--- a/share/mk/bsd.cpu.mk
+++ b/share/mk/bsd.cpu.mk
@@ -12,7 +12,7 @@ MACHINE_CPU = i486
 MACHINE_CPU = amd64 sse2 sse mmx
 . elif ${MACHINE_ARCH} == "ia64"
 MACHINE_CPU = itanium
-. elif ${MACHINE_ARCH} == "powerpc"
+. elif ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpc64"
 MACHINE_CPU = aim
 . elif ${MACHINE_ARCH} == "sparc64"
 . elif ${MACHINE_ARCH} == "arm"
@@ -121,6 +121,8 @@ _CPUCFLAGS = -Wa,-me500 -msoft-float
 .  else
 _CPUCFLAGS = -mcpu=${CPUTYPE} -mno-powerpc64
 .  endif
+. elif ${MACHINE_ARCH} == "powerpc64"
+_CPUCFLAGS = -mcpu=${CPUTYPE}
 . elif ${MACHINE_ARCH} == "mips"
 .  if ${CPUTYPE} == "mips32"
 _CPUCFLAGS = -march=mips32
diff --git a/share/mk/bsd.endian.mk b/share/mk/bsd.endian.mk
index c2b141fcc9f2..8ef72e55dc1c 100644
--- a/share/mk/bsd.endian.mk
+++ b/share/mk/bsd.endian.mk
@@ -7,6 +7,7 @@
     (${MACHINE_ARCH} == "mips" && !defined(TARGET_BIG_ENDIAN))
 TARGET_ENDIANNESS= 1234
 .elif ${MACHINE_ARCH} == "powerpc" || \
+    ${MACHINE_ARCH} == "powerpc64" || \
     ${MACHINE_ARCH} == "sparc64" || \
     ${MACHINE_ARCH} == "arm" || \
     ${MACHINE_ARCH} == "mips"
diff --git a/share/mk/sys.mk b/share/mk/sys.mk
index ac77b2553cec..2c69c8e8c5ff 100644
--- a/share/mk/sys.mk
+++ b/share/mk/sys.mk
@@ -13,7 +13,7 @@ unix		?=	We run FreeBSD, not UNIX.
 # of size and/or endian.  This is called MACHINE_CPU in NetBSD, but
 # that's used for something different in FreeBSD.
 #
-MACHINE_CPUARCH=${MACHINE_ARCH:C/mipse[lb]/mips/:C/armeb/arm/}
+MACHINE_CPUARCH=${MACHINE_ARCH:C/mipse[lb]/mips/:C/armeb/arm/:C/powerpc64/powerpc/}
 .endif
 
 # If the special target .POSIX appears (without prerequisites or