diff --git a/testing/ostest/roundrobin.c b/testing/ostest/roundrobin.c
index f46a8f423..095e41ef1 100644
--- a/testing/ostest/roundrobin.c
+++ b/testing/ostest/roundrobin.c
@@ -188,6 +188,7 @@ void rr_test(void)
 
   sched_lock();
   sem_init(&g_rrsem, 0, 0);
+  sem_setprotocol(&g_rrsem, SEM_PRIO_NONE);
 
   /* Start the threads */