diff --git a/product/ERP5/Tool/BuilderTool.py b/product/ERP5/Tool/BuilderTool.py
index f5ef14b9eb47d853dfead1a124b648ade6c8b024..2d0fecb1613588dd9898f76e0459be5cc2cddfbf 100644
--- a/product/ERP5/Tool/BuilderTool.py
+++ b/product/ERP5/Tool/BuilderTool.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 ##############################################################################
 #
 # Copyright (c) 2009 Nexedi SA and Contributors. All Rights Reserved.
diff --git a/product/ERP5/Tool/DeliveryTool.py b/product/ERP5/Tool/DeliveryTool.py
index c07cfb161cc3e8a42c77b9640be2100cc1db1407..18883084cab46810a6aba20e55aac525c93da907 100644
--- a/product/ERP5/Tool/DeliveryTool.py
+++ b/product/ERP5/Tool/DeliveryTool.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 ##############################################################################
 #
 # Copyright (c) 2005-2009 Nexedi SA and Contributors. All Rights Reserved.
diff --git a/product/ERP5/Tool/OrderTool.py b/product/ERP5/Tool/OrderTool.py
index a73f75fdb6361a27fb439345462d4d15d69e231e..48229eb5295e0d15a660a790a0248b90568c495e 100644
--- a/product/ERP5/Tool/OrderTool.py
+++ b/product/ERP5/Tool/OrderTool.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 ##############################################################################
 #
 # Copyright (c) 2005-2009 Nexedi SA and Contributors. All Rights Reserved.