diff --git a/DMRAccessControl.h b/DMRAccessControl.h
index 118365c..ccb7c69 100644
--- a/DMRAccessControl.h
+++ b/DMRAccessControl.h
@@ -1,4 +1,7 @@
 /*
+ *   Copyright (C) 2016 by Simon Rune G7RZU
+ *   Copyright (C) 2016 by Jonathan Naylor G4KLX
+ *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
  *   the Free Software Foundation; either version 2 of the License, or