diff --git a/src/plugin_gtajoaat.c b/src/plugin_gtajoaat.c
index 720f38b..56b2e07 100644
--- a/src/plugin_gtajoaat.c
+++ b/src/plugin_gtajoaat.c
@@ -1,3 +1,21 @@
+/*****************************************************************************
+* checkbrute_gtajoaat Checkbrute GTAJOAAT plugin
+* Copyright (C) 2020 Syping
+*
+* Redistribution and use in source and binary forms, with or without modification,
+* are permitted provided that the following conditions are met:
+*
+* 1. Redistributions of source code must retain the above copyright notice,
+* this list of conditions and the following disclaimer.
+*
+* 2. Redistributions in binary form must reproduce the above copyright notice,
+* this list of conditions and the following disclaimer in the documentation
+* and/or other materials provided with the distribution.
+*
+* This software is provided as-is, no warranties are given to you, we are not
+* responsible for anything with use of the software, you are self responsible.
+*****************************************************************************/
+
 #include <stdint.h>
 #include <stdio.h>
 #include <ctype.h>