Index: Modules/_fileio.c
===================================================================
--- Modules/_fileio.c	(revision 66556)
+++ Modules/_fileio.c	(working copy)
@@ -831,7 +831,7 @@
 };
 
 PyTypeObject PyFileIO_Type = {
-	PyVarObject_HEAD_INIT(&PyType_Type, 0)
+	PyVarObject_HEAD_INIT(NULL, 0)
 	"_FileIO",
 	sizeof(PyFileIOObject),
 	0,