#1535: rename __builtin__ module to builtins.
diff --git a/Objects/exceptions.c b/Objects/exceptions.c
index e26c350..14e1bfb 100644
--- a/Objects/exceptions.c
+++ b/Objects/exceptions.c
@@ -1849,7 +1849,7 @@
     PRE_INIT(UnicodeWarning)
     PRE_INIT(BytesWarning)
 
-    bltinmod = PyImport_ImportModule("__builtin__");
+    bltinmod = PyImport_ImportModule("builtins");
     if (bltinmod == NULL)
         Py_FatalError("exceptions bootstrapping error.");
     bdict = PyModule_GetDict(bltinmod);