diff --git a/LICENCE.txt b/LICENCE.txt
index 3ce01f0..718cb93 100644
--- a/LICENCE.txt
+++ b/LICENCE.txt
@@ -9,7 +9,7 @@ at the end of this document.
 GeoSolver
 ---------
 
-Copyright 2007-2009 Rick van der Meiden
+Copyright 2007-2012 Rick van der Meiden
 
 GeoSolver is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -31,6 +31,7 @@ SolverGUI
 ---------
 
 Copyright 2008-2009 Rogier de Regt
+Copyright 2009-2012 Rick van der Meiden
 
 GeoSolver is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by