--- pyobjc-core/Modules/objc/objc-class.m.orig 2009-06-23 15:35:44.000000000 -0700
+++ pyobjc-core/Modules/objc/objc-class.m 2009-06-29 12:41:41.000000000 -0700
@@ -1408,7 +1408,9 @@
if (strcmp(className, "NSBlock") == 0) {
((PyTypeObject *)result)->tp_basicsize = sizeof(PyObjCBlockObject);
((PyTypeObject *)result)->tp_call = PyObjCBlock_Call;
+#if PY_MAJOR_VERSION > 2 || PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION > 5
PyType_Modified((PyTypeObject*)result);
+#endif /* > 2.5 */
PyType_Ready((PyTypeObject *)result);
}