diff --git a/Makefile b/Makefile
index 2dfe009916a..e8b3902fae2 100644
--- a/Makefile
+++ b/Makefile
@@ -317,7 +317,7 @@ MMAKEENV=	MAKEOBJDIRPREFIX=${MYMAKE:H} \
 MMAKE=		${MMAKEENV} ${MAKE} \
 		MAN= -DNO_SHARED \
 		-DNO_CPU_CFLAGS -DNO_WERROR \
-		MK_TESTS=no \
+		-DNO_SUBDIR \
 		DESTDIR= PROGNAME=${MYMAKE:T}
 
 bmake: .PHONY