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
@@ -6,6 +6,8 @@ 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