diff --git a/setup.py b/setup.py
index bbe3bb9..1ad91b6 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,8 @@
-""" Tryton module to XRechnung to edocument
-"""
+# -*- coding: utf-8 -*-
+# This file is part of the edocument-module for Tryton from m-ds.de.
+# The COPYRIGHT file at the top level of this repository contains the
+# full copyright notices and license terms.
 
-# Always prefer setuptools over distutils
 from setuptools import setup
 # To use a consistent encoding
 from codecs import open