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/complexobject.c b/Objects/complexobject.c
index a8a2188..6d1dbde 100644
--- a/Objects/complexobject.c
+++ b/Objects/complexobject.c
@@ -1074,8 +1074,7 @@
 };
 
 PyTypeObject PyComplex_Type = {
-	PyObject_HEAD_INIT(&PyType_Type)
-	0,
+	PyVarObject_HEAD_INIT(&PyType_Type, 0)
 	"complex",
 	sizeof(PyComplexObject),
 	0,