diff --git a/tests/sys/net/if_ovpn/Makefile b/tests/sys/net/if_ovpn/Makefile
index 63fe05077f12..823ad06e76ee 100644
--- a/tests/sys/net/if_ovpn/Makefile
+++ b/tests/sys/net/if_ovpn/Makefile
@@ -1,28 +1,30 @@
 .include <src.opts.mk>
 
 PACKAGE=	tests
 
 TESTSDIR=	${TESTSBASE}/sys/net/if_ovpn
 
 .if ${MK_PF} != "no"
 ATF_TESTS_SH+=	if_ovpn
+# Tests reuse jail names and so cannot run in parallel.
+TEST_METADATA.if_ovpn+=	is_exclusive=true
 .endif
 ATF_TESTS_C+=	if_ovpn_c
 
 LIBADD+=	nv
 
 TESTS_SUBDIRS+=	ccd
 
 ${PACKAGE}FILES+= \
 	ca.crt \
 	client.crt \
 	client.key \
 	client2.crt \
 	client2.key \
 	dh.pem \
 	server.crt \
 	server.key \
 	user.pass \
 	utils.subr
 
 .include <bsd.test.mk>