diff --git a/Include/structmember.h b/Include/structmember.h
index 10555b1..acdb84e 100644
--- a/Include/structmember.h
+++ b/Include/structmember.h
@@ -69,8 +69,8 @@
 /* Flags */
 #define READONLY	1
 #define READ_RESTRICTED	2
-#define WRITE_RESTRICTED 4
-#define RESTRICTED	(READ_RESTRICTED | WRITE_RESTRICTED)
+#define PY_WRITE_RESTRICTED 4
+#define RESTRICTED	(READ_RESTRICTED | PY_WRITE_RESTRICTED)
 
 
 /* Current API, use this */