#1535: rename __builtin__ module to builtins.
diff --git a/Doc/c-api/intro.rst b/Doc/c-api/intro.rst
index 60b0052..0717241 100644
--- a/Doc/c-api/intro.rst
+++ b/Doc/c-api/intro.rst
@@ -507,7 +507,7 @@
 
 .. index::
    single: Py_Initialize()
-   module: __builtin__
+   module: builtins
    module: __main__
    module: sys
    module: exceptions
@@ -516,7 +516,7 @@
 
 The basic initialization function is :cfunc:`Py_Initialize`. This initializes
 the table of loaded modules, and creates the fundamental modules
-:mod:`__builtin__`, :mod:`__main__`, :mod:`sys`, and :mod:`exceptions`.  It also
+:mod:`builtins`, :mod:`__main__`, :mod:`sys`, and :mod:`exceptions`.  It also
 initializes the module search path (``sys.path``).
 
 .. index:: single: PySys_SetArgv()