1 files changed, 7 insertions, 4 deletions
diff --git a/Lib/test/test_extcall.py b/Lib/test/test_extcall.py
index 4205ca82222..13265ea0d8c 100644
--- a/Lib/test/test_extcall.py
+++ b/Lib/test/test_extcall.py
@@ -520,11 +520,14 @@ Same with keyword only args:
 
 """
 
-import sys
+import doctest
+import unittest
 from test import support
 
-def test_main():
-    support.run_doctest(sys.modules[__name__], True)
+def load_tests(loader, tests, pattern):
+    tests.addTest(doctest.DocTestSuite())
+    return tests
+
 
 if __name__ == '__main__':
-    test_main()
+    unittest.main()