diff --git a/Include/Python.h b/Include/Python.h
index aa1a2b2..051deae 100644
--- a/Include/Python.h
+++ b/Include/Python.h
@@ -160,9 +160,9 @@
 #define PyDoc_STR(str) ""
 #endif
 
-#define PY_ARRAY_LENGTH(array) (sizeof(array) / sizeof((array)[0]))
+#define Py_ARRAY_LENGTH(array) (sizeof(array) / sizeof((array)[0]))
 
-#define PY_MIN(x, y) (((x) > (y)) ? (y) : (x))
-#define PY_MAX(x, y) (((x) > (y)) ? (x) : (y))
+#define Py_MIN(x, y) (((x) > (y)) ? (y) : (x))
+#define Py_MAX(x, y) (((x) > (y)) ? (x) : (y))
 
 #endif /* !Py_PYTHON_H */