#1535: rename __builtin__ module to builtins.
diff --git a/Doc/tutorial/classes.rst b/Doc/tutorial/classes.rst
index 4e95419..577c7e9 100644
--- a/Doc/tutorial/classes.rst
+++ b/Doc/tutorial/classes.rst
@@ -98,7 +98,7 @@
invocation of the interpreter, either read from a script file or interactively,
are considered part of a module called :mod:`__main__`, so they have their own
global namespace. (The built-in names actually also live in a module; this is
-called :mod:`__builtin__`.)
+called :mod:`builtins`.)
The local namespace for a function is created when the function is called, and
deleted when the function returns or raises an exception that is not handled