diff --git a/Lib/doctest.py b/Lib/doctest.py
index dcd64072e1a..311469f0bd8 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -200,7 +200,6 @@ def _test():
     'Tester',
     # 8. Unittest Support
     'DocTestCase',
-    'nooutput',
     'DocTestSuite',
     'DocFileCase',
     'DocFileTest',
@@ -2105,7 +2104,7 @@ def debug(self):
 
         runner = DebugRunner(optionflags=self._dt_optionflags,
                              checker=self._dt_checker, verbose=False)
-        runner.run(self._dt_test, out=nooutput)
+        runner.run(self._dt_test)
 
     def id(self):
         return self._dt_test.name
@@ -2119,9 +2118,6 @@ def __repr__(self):
     def shortDescription(self):
         return "Doctest: " + self._dt_test.name
 
-def nooutput(*args):
-    pass
-
 def DocTestSuite(module=None, globs=None, extraglobs=None,
                  optionflags=0, test_finder=None,
                  setUp=lambda: None, tearDown=lambda: None,