1 files changed, 4 insertions, 3 deletions
diff --git a/test/tsan/atomic_free.cc b/test/tsan/atomic_free.cc
index 1dcf887c41d5b..a0d8e426b49fc 100644
--- a/test/tsan/atomic_free.cc
+++ b/test/tsan/atomic_free.cc
@@ -1,17 +1,18 @@
 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
-#include <pthread.h>
-#include <unistd.h>
+#include "test.h"
 
 void *Thread(void *a) {
   __atomic_fetch_add((int*)a, 1, __ATOMIC_SEQ_CST);
+  barrier_wait(&barrier);
   return 0;
 }
 
 int main() {
+  barrier_init(&barrier, 2);
   int *a = new int(0);
   pthread_t t;
   pthread_create(&t, 0, Thread, a);
-  sleep(1);
+  barrier_wait(&barrier);
   delete a;
   pthread_join(t, 0);
 }