PEP 3123: Provide forward compatibility with Python 3.0, while keeping
backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
PyVarObject_HEAD_INIT.
diff --git a/Objects/bufferobject.c b/Objects/bufferobject.c
index 86515ab..98be771 100644
--- a/Objects/bufferobject.c
+++ b/Objects/bufferobject.c
@@ -664,8 +664,7 @@
 };
 
 PyTypeObject PyBuffer_Type = {
-	PyObject_HEAD_INIT(&PyType_Type)
-	0,
+	PyVarObject_HEAD_INIT(&PyType_Type, 0)
 	"buffer",
 	sizeof(PyBufferObject),
 	0,