diff --git a/addons/payment_acquirer/models/payment_acquirer.py b/addons/payment_acquirer/models/payment_acquirer.py
index 50d25ff983e..c26742fc7ae 100644
--- a/addons/payment_acquirer/models/payment_acquirer.py
+++ b/addons/payment_acquirer/models/payment_acquirer.py
@@ -8,7 +8,7 @@ _logger = logging.getLogger(__name__)
 
 
 class ValidationError(ValueError):
-    """ Used for value error when validatin coming from acquirers. """
+    """ Used for value error when validating transaction data coming from acquirers. """
     pass
 
 
diff --git a/addons/payment_acquirer/tests/common.py b/addons/payment_acquirer/tests/common.py
index df368f5b1dd..5c915f80cbf 100644
--- a/addons/payment_acquirer/tests/common.py
+++ b/addons/payment_acquirer/tests/common.py
@@ -1,23 +1,4 @@
 # -*- coding: utf-8 -*-
-##############################################################################
-#
-#    OpenERP, Open Source Business Applications
-#    Copyright (c) 20123TODAY OpenERP S.A. <http://www.openerp.com>
-#
-#    This program is free software: you can redistribute it and/or modify
-#    it under the terms of the GNU Affero General Public License as
-#    published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
-#
-#    You should have received a copy of the GNU Affero General Public License
-#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-##############################################################################
 
 from openerp.tests import common