Index: head/tests/Makefile
===================================================================
--- head/tests/Makefile	(revision 283844)
+++ head/tests/Makefile	(revision 283845)
@@ -1,15 +1,15 @@
 # $FreeBSD$
 
 .include <bsd.own.mk>
 
-SUBDIR= etc
-SUBDIR= sys
+SUBDIR+= etc
+SUBDIR+= sys
 
 TESTSDIR= ${TESTSBASE}
 KYUAFILE= yes
 
 afterinstall: install-tests-local
 install-tests-local: .PHONY
 	${INSTALL_SYMLINK} ../local/tests ${DESTDIR}${TESTSDIR}/local
 
 .include <bsd.test.mk>