diff --git a/Lib/asyncio/test_utils.py b/Lib/asyncio/test_utils.py
index b12d5db2a97..94d48e1361a 100644
--- a/Lib/asyncio/test_utils.py
+++ b/Lib/asyncio/test_utils.py
@@ -33,6 +33,7 @@ from . import selectors
 from . import tasks
 from .coroutines import coroutine
 from .log import logger
+from test import support
 
 
 if sys.platform == 'win32':  # pragma: no cover
@@ -455,6 +456,7 @@ class TestCase(unittest.TestCase):
     def setUp(self):
         self._get_running_loop = events._get_running_loop
         events._get_running_loop = lambda: None
+        self._thread_cleanup = support.threading_setup()
 
     def tearDown(self):
         self.unpatch_get_running_loop()
@@ -465,6 +467,10 @@ class TestCase(unittest.TestCase):
         # in an except block of a generator
         self.assertEqual(sys.exc_info(), (None, None, None))
 
+        self.doCleanups()
+        support.threading_cleanup(*self._thread_cleanup)
+        support.reap_children()
+
     if not compat.PY34:
         # Python 3.3 compatibility
         def subTest(self, *args, **kwargs):
diff --git a/Lib/test/test_asyncio/test_selector_events.py b/Lib/test/test_asyncio/test_selector_events.py
index 6bf7862ecf9..c50b3e49565 100644
--- a/Lib/test/test_asyncio/test_selector_events.py
+++ b/Lib/test/test_asyncio/test_selector_events.py
@@ -24,16 +24,14 @@ MOCK_ANY = mock.ANY
 
 class TestBaseSelectorEventLoop(BaseSelectorEventLoop):
 
-    def close(self):
-        # Don't call the close() method of the parent class, because the
-        # selector is mocked
-        self._closed = True
-
     def _make_self_pipe(self):
         self._ssock = mock.Mock()
         self._csock = mock.Mock()
         self._internal_fds += 1
 
+    def _close_self_pipe(self):
+        pass
+
 
 def list_to_buffer(l=()):
     return bytearray().join(l)