diff --git a/account_invoice_constraint_chronology/tests/test_account_constraint_chronology.py b/account_invoice_constraint_chronology/tests/test_account_constraint_chronology.py
index 70895831..df5a2ed7 100644
--- a/account_invoice_constraint_chronology/tests/test_account_constraint_chronology.py
+++ b/account_invoice_constraint_chronology/tests/test_account_constraint_chronology.py
@@ -33,9 +33,6 @@ from openerp import exceptions
 from datetime import datetime, timedelta
 from openerp.tools import DEFAULT_SERVER_DATE_FORMAT
 
-DB = common.DB
-ADMIN_USER_ID = common.ADMIN_USER_ID
-
 
 def get_simple_product_id(self):
     return self.env['product.product'].create({'name': 'product_test_01',