diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index a2068ac..9d4d14f 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -2577,7 +2577,7 @@
 	long intval;
 	if (PyFloat_Check(t)) {
 		double tval = PyFloat_AsDouble(t);
-		PyObject *intobj = t->ob_type->tp_as_number->nb_int(t);
+		PyObject *intobj = Py_Type(t)->tp_as_number->nb_int(t);
 		if (!intobj)
 			return -1;
 		intval = PyInt_AsLong(intobj);