diff --git a/Lib/doctest.py b/Lib/doctest.py
index 6441054dd16..dc7ec899d65 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -90,7 +90,6 @@ __all__ = [
     'script_from_examples',
     'testsource',
     'debug_src',
-    'debug_script',
     'debug',
 ]