diff --git a/rfid/rfid_keypresser.py b/rfid/rfid_keypresser.py
index 28f9d9b..819691c 100755
--- a/rfid/rfid_keypresser.py
+++ b/rfid/rfid_keypresser.py
@@ -1,7 +1,8 @@
 #! /usr/bin/env python
-
-# by Andrew Karpow <andy@mail.tu-berlin.de>
-# Public Domain
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2011 Andrew Karpow <andy@mail.tu-berlin.de>
+# Licensed under GPL v3 or later
 
 from smartcard.CardMonitoring import CardMonitor, CardObserver
 from smartcard.util import toHexString