Correction to issue 17052 fix

2 files changed, 2 insertions, 2 deletions

diff --git a/Lib/unittest/main.py b/Lib/unittest/main.py
index d09bccdf2c..63c8139000 100644
--- a/Lib/unittest/main.py
+++ b/Lib/unittest/main.py
@@ -199,7 +199,7 @@ class TestProgram(object):
 
     def _do_discovery(self, argv, Loader=None):
         if Loader is None:
-            Loader = self.testLoader
+            Loader = lambda: self.testLoader
 
         # handle command line args for test discovery
         self.progName = '%s discover' % self.progName
diff --git a/Lib/unittest/test/test_discovery.py b/Lib/unittest/test/test_discovery.py
index eba269fc7a..1fdf9913c9 100644
--- a/Lib/unittest/test/test_discovery.py
+++ b/Lib/unittest/test/test_discovery.py
@@ -269,7 +269,7 @@ class TestDiscovery(unittest.TestCase):
                 self.args.append((start_dir, pattern, top_level_dir))
                 return 'tests'
 
-        program.testLoader = Loader
+        program.testLoader = Loader()
         program._do_discovery(['-v'])
         self.assertEqual(Loader.args, [('.', 'test*.py', None)])