diff --git a/tools/testing/selftests/bpf/prog_tests/mptcp.c b/tools/testing/selftests/bpf/prog_tests/mptcp.c
index f4715b1692df43..04146184e45aa0 100644
--- a/tools/testing/selftests/bpf/prog_tests/mptcp.c
+++ b/tools/testing/selftests/bpf/prog_tests/mptcp.c
@@ -492,7 +492,7 @@ static struct nstoken *sched_init(char *flags, char *sched)
 	if (!ASSERT_OK_PTR(nstoken, "create_netns"))
 		return NULL;
 
-	if (endpoint_init("subflow") < 0)
+	if (endpoint_init("subflow", 2) < 0)
 		goto fail;
 
 	SYS(fail, "ip netns exec %s sysctl -qw net.mptcp.scheduler=%s", NS_TEST, sched);