diff --git a/opm/simulators/aquifers/BlackoilAquiferModel_impl.hpp b/opm/simulators/aquifers/BlackoilAquiferModel_impl.hpp
index a65a8645e..55d964f2f 100644
--- a/opm/simulators/aquifers/BlackoilAquiferModel_impl.hpp
+++ b/opm/simulators/aquifers/BlackoilAquiferModel_impl.hpp
@@ -1,3 +1,23 @@
+/*
+  Copyright 2017 TNO - Heat Transfer & Fluid Dynamics, Modelling & Optimization of the Subsurface
+  Copyright 2017 Statoil ASA.
+
+  This file is part of the Open Porous Media project (OPM).
+
+  OPM 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 3 of the License, or
+  (at your option) any later version.
+
+  OPM 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 General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
 #include <opm/grid/utility/cartesianToCompressed.hpp>
 namespace Opm
 {