diff --git a/Objects/sliceobject.c b/Objects/sliceobject.c
index 3fb1430..d147bce 100644
--- a/Objects/sliceobject.c
+++ b/Objects/sliceobject.c
@@ -23,8 +23,7 @@
 }
 
 static PyTypeObject PyEllipsis_Type = {
-	PyObject_HEAD_INIT(&PyType_Type)
-	0,				/* ob_size */
+	PyVarObject_HEAD_INIT(&PyType_Type, 0)
 	"ellipsis",			/* tp_name */
 	0,				/* tp_basicsize */
 	0,				/* tp_itemsize */
@@ -47,7 +46,8 @@
 };
 
 PyObject _Py_EllipsisObject = {
-	PyObject_HEAD_INIT(&PyEllipsis_Type)
+	_PyObject_EXTRA_INIT
+	1, &PyEllipsis_Type
 };
 
 
@@ -277,7 +277,7 @@
 static PyObject *
 slice_reduce(PySliceObject* self)
 {
-	return Py_BuildValue("O(OOO)", self->ob_type, self->start, self->stop, self->step);
+	return Py_BuildValue("O(OOO)", Py_Type(self), self->start, self->stop, self->step);
 }
 
 PyDoc_STRVAR(reduce_doc, "Return state information for pickling.");
@@ -319,8 +319,7 @@
 }
 
 PyTypeObject PySlice_Type = {
-	PyObject_HEAD_INIT(&PyType_Type)
-	0,			/* Number of items for varobject */
+	PyVarObject_HEAD_INIT(&PyType_Type, 0)
 	"slice",		/* Name of this type */
 	sizeof(PySliceObject),	/* Basic object size */
 	0,			/* Item size for varobject */