diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 97ca816..d319ca3 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -1245,7 +1245,7 @@
 				PyExc_TypeError,
 				"getsockaddrarg: "
 				"AF_NETLINK address must be tuple, not %.500s",
-				args->ob_type->tp_name);
+				Py_Type(args)->tp_name);
 			return 0;
 		}
 		if (!PyArg_ParseTuple(args, "II:getsockaddrarg", &pid, &groups))
@@ -1268,7 +1268,7 @@
 				PyExc_TypeError,
 				"getsockaddrarg: "
 				"AF_INET address must be tuple, not %.500s",
-				args->ob_type->tp_name);
+				Py_Type(args)->tp_name);
 			return 0;
 		}
 		if (!PyArg_ParseTuple(args, "eti:getsockaddrarg",
@@ -1298,7 +1298,7 @@
 				PyExc_TypeError,
 				"getsockaddrarg: "
 				"AF_INET6 address must be tuple, not %.500s",
-				args->ob_type->tp_name);
+				Py_Type(args)->tp_name);
 			return 0;
 		}
 		if (!PyArg_ParseTuple(args, "eti|ii",
@@ -1420,7 +1420,7 @@
 				PyExc_TypeError,
 				"getsockaddrarg: "
 				"AF_PACKET address must be tuple, not %.500s",
-				args->ob_type->tp_name);
+				Py_Type(args)->tp_name);
 			return 0;
 		}
 		if (!PyArg_ParseTuple(args, "si|iis#", &interfaceName,
@@ -2843,7 +2843,7 @@
 {
 	if (s->sock_fd != -1)
 		(void) SOCKETCLOSE(s->sock_fd);
-	s->ob_type->tp_free((PyObject *)s);
+	Py_Type(s)->tp_free((PyObject *)s);
 }
 
 
@@ -2928,8 +2928,7 @@
 /* Type object for socket objects. */
 
 static PyTypeObject sock_type = {
-	PyObject_HEAD_INIT(0)	/* Must fill in type value later */
-	0,					/* ob_size */
+	PyVarObject_HEAD_INIT(0, 0)	/* Must fill in type value later */
 	"_socket.socket",			/* tp_name */
 	sizeof(PySocketSockObject),		/* tp_basicsize */
 	0,					/* tp_itemsize */
@@ -3555,7 +3554,7 @@
 	else
 		return PyErr_Format(PyExc_TypeError,
 				    "expected int/long, %s found",
-				    arg->ob_type->tp_name);
+				    Py_Type(arg)->tp_name);
 	if (x == (unsigned long) -1 && PyErr_Occurred())
 		return NULL;
 	return PyLong_FromUnsignedLong(ntohl(x));
@@ -3624,7 +3623,7 @@
 	else
 		return PyErr_Format(PyExc_TypeError,
 				    "expected int/long, %s found",
-				    arg->ob_type->tp_name);
+				    Py_Type(arg)->tp_name);
 	return PyLong_FromUnsignedLong(htonl((unsigned long)x));
 }
 
@@ -4274,7 +4273,7 @@
 	if (!os_init())
 		return;
 
-	sock_type.ob_type = &PyType_Type;
+	Py_Type(&sock_type) = &PyType_Type;
 	m = Py_InitModule3(PySocket_MODULE_NAME,
 			   socket_methods,
 			   socket_doc);