diff --git a/COPYRIGHT b/COPYRIGHT
index 89a34632db525b1309d2f5b57e9e5076396cff17..c30137c0bed9bc9a3b4cbc5925fae61ae7bc8721 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1 +1,12 @@
 Copyright (C) 2007-2017 Potsdam Institute for Climate Impact Research
+
+The LPJmL4 Model Code is free software: you can redistribute it and/or modify it
+under the terms of the GNU Affero Public License as published by the Free
+Software Foundation, either version 3 of the License, or (at your option) any
+later version. VelocityConversion is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero Public
+License for more details. You should have received a copy of the GNU Affero
+Public License along with this program. If not, see
+http://www.gnu.org/licenses/.
+