diff --git a/firmware/libcommon/include/iso7816_fidi.h b/firmware/libcommon/include/iso7816_fidi.h
index 3b4b451..c56478b 100644
--- a/firmware/libcommon/include/iso7816_fidi.h
+++ b/firmware/libcommon/include/iso7816_fidi.h
@@ -1,3 +1,21 @@
+/* ISO7816-3 Fi/Di tables + computation
+ *
+ * (C) 2010-2015 by Harald Welte <laforge@gnumonks.org>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA
+ */
 #pragma once
 
 #include <stdint.h>