diff --git a/lib/ActivatableComponent.vala b/lib/ActivatableComponent.vala
index b8b557f4..cd6538a8 100644
--- a/lib/ActivatableComponent.vala
+++ b/lib/ActivatableComponent.vala
@@ -1,3 +1,19 @@
+//
+//  Copyright (C) 2014 Tom Beckmann
+//
+//  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 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+//
 
 namespace Gala
 {