Index: head/tests/sys/aio/Makefile
===================================================================
--- head/tests/sys/aio/Makefile	(revision 282137)
+++ head/tests/sys/aio/Makefile	(revision 282138)
@@ -1,14 +1,16 @@
 # $FreeBSD$
 
 TESTSDIR=	${TESTSBASE}/sys/aio
 
 PLAIN_TESTS_C+=	aio_kqueue_test
 PLAIN_TESTS_C+=	lio_kqueue_test
 ATF_TESTS_C+=	aio_test
 
 DPADD.aio_test+=	${LIBUTIL}
 LDADD.aio_test+=	-lutil
 
+CFLAGS+=	-I${.CURDIR:H:H}
+
 WARNS?=	6
 
 .include <bsd.test.mk>