diff --git a/product/ERP5/tests/testERP5Commerce.py b/product/ERP5/tests/testERP5Commerce.py
index 1bafae96c30dac03e53073d2622fdf88e4426b6a..a079d26b4e786972fcfbf02e5584bd09708410e4 100644
--- a/product/ERP5/tests/testERP5Commerce.py
+++ b/product/ERP5/tests/testERP5Commerce.py
@@ -1,3 +1,4 @@
+# encoding: utf-8
 ##############################################################################
 #
 # Copyright (c) 2005 Nexedi SARL and Contributors. All Rights Reserved.