1 files changed, 3 insertions, 2 deletions
diff --git a/Lib/unittest/test/testmock/testmock.py b/Lib/unittest/test/testmock/testmock.py
index b20b8e2..307b8b7 100644
--- a/Lib/unittest/test/testmock/testmock.py
+++ b/Lib/unittest/test/testmock/testmock.py
@@ -9,7 +9,7 @@ from unittest import mock
 from unittest.mock import (
     call, DEFAULT, patch, sentinel,
     MagicMock, Mock, NonCallableMock,
-    NonCallableMagicMock, _Call, _CallList,
+    NonCallableMagicMock, AsyncMock, _Call, _CallList,
     create_autospec
 )
 
@@ -1618,7 +1618,8 @@ class MockTest(unittest.TestCase):
 
 
     def test_adding_child_mock(self):
-        for Klass in NonCallableMock, Mock, MagicMock, NonCallableMagicMock:
+        for Klass in (NonCallableMock, Mock, MagicMock, NonCallableMagicMock,
+                      AsyncMock):
             mock = Klass()
 
             mock.foo = Mock()