diff --git a/Makefile.inc1 b/Makefile.inc1
index dbb4d9ff6b7f..1c34918fa52e 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -165,7 +165,7 @@ BUILD_ARCH!=	uname -p
 .if ${MACHINE} == ${TARGET} && !defined(CROSS_BUILD_TESTING)
 OBJTREE=	${MAKEOBJDIRPREFIX}
 .else
-OBJTREE=	${MAKEOBJDIRPREFIX}/${TARGET}
+OBJTREE=	${MAKEOBJDIRPREFIX}/${TARGET}.${TARGET_ARCH}
 .endif
 WORLDTMP=	${OBJTREE}${.CURDIR}/tmp
 # /usr/games added for fortune which depend on strfile