diff --git a/lib/decryption/decryption_impl.h b/lib/decryption/decryption_impl.h
index 68fbb9c..d5332d4 100644
--- a/lib/decryption/decryption_impl.h
+++ b/lib/decryption/decryption_impl.h
@@ -1,19 +1,21 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2014 <+YOU OR YOUR COMPANY+>.
+ * @file
+ * @author Piotr Krysik <ptrkrysik@gmail.com>
+ * @section LICENSE
  *
- * This is free software; you can redistribute it and/or modify
+ * Gr-gsm 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, or (at your option)
  * any later version.
  *
- * This software is distributed in the hope that it will be useful,
+ * Gr-gsm 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 software; see the file COPYING.  If not, write to
+ * along with gr-gsm; see the file COPYING.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street,
  * Boston, MA 02110-1301, USA.
  */