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,
@@ -881,6 +881,8 @@
 {
 	PyObject *m;	/* a module object */
 
+	Py_TYPE(&PyFileIO_Type) = &PyType_Type;
+
 	m = Py_InitModule3("_fileio", module_methods,
 			   "Fast implementation of io.FileIO.");
 	if (m == NULL)