diff --git a/REGEX.cpp b/REGEX.cpp
index 5605b57..5ad3f8b 100644
--- a/REGEX.cpp
+++ b/REGEX.cpp
@@ -1,6 +1,8 @@
 /*
 *   Copyright (C) 2016,2017 by Jonathan Naylor G4KLX
 *
+*   Contributed by Simon G7RZU
+*
 *   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
diff --git a/REGEX.h b/REGEX.h
index 1ab6c14..a1888bb 100644
--- a/REGEX.h
+++ b/REGEX.h
@@ -1,6 +1,8 @@
 /*
 *   Copyright (C) 2016,2017 by Jonathan Naylor G4KLX
 *
+*   Contributed by Simon G7RZU
+*
 *   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