diff --git a/src/def.hpp b/src/def.hpp
index 68dcbc2d..83286bc8 100644
--- a/src/def.hpp
+++ b/src/def.hpp
@@ -4,7 +4,6 @@
 #define _ANSI
 #define ANSI
 #define WINDOW_TITLE "CRCSN"
-#define _THE_NEXT_MAJOR_UPDATE_
 #include<stdio.h>
 #ifdef _THE_NEXT_MAJOR_UPDATE_
 #include<fstream>