diff --git a/tests/test_invoice.py b/tests/test_invoice.py
index 811b717..a30b98f 100644
--- a/tests/test_invoice.py
+++ b/tests/test_invoice.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
-# This file is part of the cashbook-module from m-ds for Tryton.
-# The COPYRIGHT file at the top level of this repository contains the
-# full copyright notices and license terms.
+# This file is part of the account-invoice-xrechnung-module
+# from m-ds for Tryton. The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
 
 from trytond.tests.test_tryton import ModuleTestCase, with_transaction
 
@@ -17,3 +17,6 @@ class InvoiceTestCase(ModuleTestCase):
         pass
 
 # end InvoiceTestCase
+
+
+del ModuleTestCase