diff --git a/src/Instrumentation/groundradar.cxx b/src/Instrumentation/groundradar.cxx
index 76933ec1b..da2442222 100644
--- a/src/Instrumentation/groundradar.cxx
+++ b/src/Instrumentation/groundradar.cxx
@@ -1,6 +1,6 @@
 //  groundradar.cxx - Background layer for the ATC radar.
 //
-//  Written by Csaba Halasz.
+//  Copyright (C) 2007 Csaba Halasz.
 //
 //  This program is free software; you can redistribute it and/or
 //  modify it under the terms of the GNU General Public License as
diff --git a/src/Instrumentation/groundradar.hxx b/src/Instrumentation/groundradar.hxx
index ad8aa3371..8a6a82d08 100644
--- a/src/Instrumentation/groundradar.hxx
+++ b/src/Instrumentation/groundradar.hxx
@@ -1,6 +1,6 @@
 //  groundradar.hxx - Background layer for the ATC radar.
 //
-//  Written by Csaba Halasz.
+//  Copyright (C) 2007 Csaba Halasz.
 //
 //  This program is free software; you can redistribute it and/or
 //  modify it under the terms of the GNU General Public License as