#1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT.
diff --git a/Include/memoryobject.h b/Include/memoryobject.h
index 8709da5..ad2e8e7 100644
--- a/Include/memoryobject.h
+++ b/Include/memoryobject.h
@@ -16,7 +16,7 @@
 
 PyAPI_DATA(PyTypeObject) PyMemoryView_Type;
 
-#define PyMemory_Check(op) (Py_Type(op) == &PyMemoryView_Type)
+#define PyMemory_Check(op) (Py_TYPE(op) == &PyMemoryView_Type)
 #define PyMemoryView(op) (((PyMemoryViewObject *)(op))->view)
 
 #define Py_END_OF_MEMORY	(-1)