Index: head/sys/modules/tests/Makefile
===================================================================
--- head/sys/modules/tests/Makefile	(revision 318010)
+++ head/sys/modules/tests/Makefile	(revision 318011)
@@ -1,7 +1,9 @@
 # $FreeBSD$
 
 SUBDIR+=	framework
 SUBDIR+=	.WAIT
 SUBDIR+=	callout_test
 
+SUBDIR_PARALLEL=
+
 .include <bsd.subdir.mk>