diff --git a/product/ERP5Form/OOoChart.py b/product/ERP5Form/OOoChart.py
index 3d259fee303fdad9f0447a0c3709ff769af3a322..674c2a598af3cf923e4ea845b8a368f5216321f2 100644
--- a/product/ERP5Form/OOoChart.py
+++ b/product/ERP5Form/OOoChart.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 ##############################################################################
 #
 # Copyright (c) 2007 Nexedi SA and Contributors. All Rights Reserved.
@@ -33,7 +34,7 @@ from Products.Formulator.DummyField import fields
 from Products.Formulator.Field import ZMIField
 from Selection import Selection
 from Products.ERP5Type.Globals import get_request
-from Products.ERP5OOo.Document.OOoDocument import STANDARD_IMAGE_FORMAT_LIST
+from Products.ERP5.Document.Document import VALID_IMAGE_FORMAT_LIST
 
 from zLOG import LOG
 
@@ -474,7 +475,7 @@ class OOoChartWidget(Widget.Widget):
       #     not editable (otherwise, REQUEST.form may contain listbox=()).
       url = '%s/%s/%s?%s' % (here.absolute_url(), form.getId(), field.getId(),
                              make_query(query_dict))
-      if format in STANDARD_IMAGE_FORMAT_LIST:
+      if format in VALID_IMAGE_FORMAT_LIST:
         return '''<div class="OOoChartContent">
           <img class="%s" src="%s" title="%s" alt="%s"/">
           </div>''' % (css_class,