diff --git a/Lib/collections.py b/Lib/collections.py
index ace2b2a..81d8928 100644
--- a/Lib/collections.py
+++ b/Lib/collections.py
@@ -103,7 +103,7 @@
     # where the named tuple is created.  Bypass this step in enviroments where
     # sys._getframe is not defined (Jython for example).
     if hasattr(_sys, '_getframe'):
-        result.__module__ = _sys._getframe(1).f_globals['__name__']
+        result.__module__ = _sys._getframe(1).f_globals.get('__name__', '__main__')
 
     return result