diff --git a/tests/test_async.py b/tests/test_async.py
old mode 100644
new mode 100755
index 97c7301a..dc5b8009
--- a/tests/test_async.py
+++ b/tests/test_async.py
@@ -287,3 +287,7 @@ class AsyncTests(unittest.TestCase):
 
 def test_suite():
     return unittest.TestLoader().loadTestsFromName(__name__)
+
+if __name__ == "__main__":
+    unittest.main()
+