diff --git a/tests/sys/netinet6/frag6/Makefile b/tests/sys/netinet6/frag6/Makefile
index f3eef9305a16..d1661060368b 100644
--- a/tests/sys/netinet6/frag6/Makefile
+++ b/tests/sys/netinet6/frag6/Makefile
@@ -1,78 +1,80 @@
 
 PACKAGE=	tests
 
 TESTSDIR=	${TESTSBASE}/sys/netinet6/frag6
 FILESDIR=	${TESTSDIR}
 
 # We split these up so they can run in parallel.
 # Seems kyua is not running the test cases from one file in parallel.
 # Otherwise we could cat the files together into one shell file.
 ATF_TESTS_SH=			\
 				frag6_01 \
 				frag6_02 \
 				frag6_03 \
 				frag6_04 \
 				frag6_05 \
 				frag6_06 \
 				frag6_07 \
 				frag6_08 \
 				frag6_09 \
 				frag6_10 \
 				frag6_11 \
 				frag6_12 \
 				frag6_13 \
 				frag6_14 \
 				frag6_15 \
 				frag6_16 \
 				frag6_17 \
 				frag6_18 \
 				frag6_19 \
 				frag6_20
 
+TEST_METADATA+=	is_exclusive=true
+
 ${PACKAGE}FILES+=		frag6.subr
 ${PACKAGE}FILES+=		sniffer.py
 ${PACKAGE}FILES+=		frag6_01.py
 ${PACKAGE}FILES+=		frag6_02.py
 ${PACKAGE}FILES+=		frag6_03.py
 ${PACKAGE}FILES+=		frag6_04.py
 ${PACKAGE}FILES+=		frag6_05.py
 ${PACKAGE}FILES+=		frag6_06.py
 ${PACKAGE}FILES+=		frag6_07.py
 ${PACKAGE}FILES+=		frag6_08.py
 ${PACKAGE}FILES+=		frag6_09.py
 ${PACKAGE}FILES+=		frag6_10.py
 ${PACKAGE}FILES+=		frag6_11.py
 ${PACKAGE}FILES+=		frag6_12.py
 ${PACKAGE}FILES+=		frag6_13.py
 ${PACKAGE}FILES+=		frag6_14.py
 ${PACKAGE}FILES+=		frag6_15.py
 ${PACKAGE}FILES+=		frag6_16.py
 ${PACKAGE}FILES+=		frag6_17.py
 ${PACKAGE}FILES+=		frag6_18.py
 ${PACKAGE}FILES+=		frag6_19.py
 ${PACKAGE}FILES+=		frag6_20.py
 
 ${PACKAGE}FILESMODE_frag6.subr=		0444
 ${PACKAGE}FILESMODE_sniffer.py=		0555
 ${PACKAGE}FILESMODE_frag6_01.py=	0555
 ${PACKAGE}FILESMODE_frag6_02.py=	0555
 ${PACKAGE}FILESMODE_frag6_03.py=	0555
 ${PACKAGE}FILESMODE_frag6_04.py=	0555
 ${PACKAGE}FILESMODE_frag6_05.py=	0555
 ${PACKAGE}FILESMODE_frag6_06.py=	0555
 ${PACKAGE}FILESMODE_frag6_07.py=	0555
 ${PACKAGE}FILESMODE_frag6_08.py=	0555
 ${PACKAGE}FILESMODE_frag6_09.py=	0555
 ${PACKAGE}FILESMODE_frag6_10.py=	0555
 ${PACKAGE}FILESMODE_frag6_11.py=	0555
 ${PACKAGE}FILESMODE_frag6_12.py=	0555
 ${PACKAGE}FILESMODE_frag6_13.py=	0555
 ${PACKAGE}FILESMODE_frag6_14.py=	0555
 ${PACKAGE}FILESMODE_frag6_15.py=	0555
 ${PACKAGE}FILESMODE_frag6_16.py=	0555
 ${PACKAGE}FILESMODE_frag6_17.py=	0555
 ${PACKAGE}FILESMODE_frag6_18.py=	0555
 ${PACKAGE}FILESMODE_frag6_19.py=	0555
 ${PACKAGE}FILESMODE_frag6_20.py=	0555
 
 .include <bsd.test.mk>