diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
index 8c4966b..b5b05c3 100644
--- a/Lib/test/test_threading.py
+++ b/Lib/test/test_threading.py
@@ -56,7 +56,16 @@
                           (self.name, self.nrunning.get()))
 
 
-class ThreadTests(unittest.TestCase):
+class BaseTestCase(unittest.TestCase):
+    def setUp(self):
+        self._threads = test.support.threading_setup()
+
+    def tearDown(self):
+        test.support.threading_cleanup(*self._threads)
+        test.support.reap_children()
+
+
+class ThreadTests(BaseTestCase):
 
     # Create a bunch of threads, let each do some work, wait until all are
     # done.
@@ -389,7 +398,7 @@
         threading.activeCount()
 
 
-class ThreadJoinOnShutdown(unittest.TestCase):
+class ThreadJoinOnShutdown(BaseTestCase):
 
     def _run_and_join(self, script):
         script = """if 1:
@@ -470,7 +479,7 @@
         self._run_and_join(script)
 
 
-class ThreadingExceptionTests(unittest.TestCase):
+class ThreadingExceptionTests(BaseTestCase):
     # A RuntimeError should be raised if Thread.start() is called
     # multiple times.
     def test_start_thread_again(self):