diff --git a/test/test_util_pkl5.py b/test/test_util_pkl5.py
index f11d7a55d..b22529b93 100644
--- a/test/test_util_pkl5.py
+++ b/test/test_util_pkl5.py
@@ -262,6 +262,8 @@ def testGetStatusAll(self):
             self.assertEqual(len(statuses), len(requests))
             for status in statuses:
                 self.assertIsInstance(status, MPI.Status)
+        if not flag:
+            self.RequestType.waitall(requests)
         flag, obj = self.RequestType.testall(requests)
         self.assertTrue(flag)
         self.assertEqual(obj, [None]*len(messages))