diff --git a/NPLib/Charissa/TCharissaData.h b/NPLib/Charissa/TCharissaData.h
index 479e804b6eccd3a3d894d9343a3b055aaa1ca7e4..7585fe5a1b03468c62537c1df7c29ce43ca96a10 100644
--- a/NPLib/Charissa/TCharissaData.h
+++ b/NPLib/Charissa/TCharissaData.h
@@ -1,5 +1,5 @@
-#ifndef __MUST2DATA__
-#define __MUST2DATA__
+#ifndef __CHARISSADATA__
+#define __CHARISSADATA__
 /*****************************************************************************
  * Copyright (C) 2009-2013    this file is part of the NPTool Project        *
  *                                                                           *