diff --git a/openerp/addons/base/ir/ir_model.py b/openerp/addons/base/ir/ir_model.py
index e10ad4aef39..57be5b31144 100644
--- a/openerp/addons/base/ir/ir_model.py
+++ b/openerp/addons/base/ir/ir_model.py
@@ -308,10 +308,10 @@ class ir_model_fields(osv.osv):
         if 'serialization_field_id' in vals or 'name' in vals:
             for field in self.browse(cr, user, ids, context=context):
                 if 'serialization_field_id' in vals and field.serialization_field_id.id != vals['serialization_field_id']:
-                    raise except_orm(_('Error!'),  _('Changing the storing system for the field "%s" is not allowed.'%field.name))
+                    raise except_orm(_('Error!'),  _('Changing the storing system for field "%s" is not allowed.')%field.name)
                 if field.serialization_field_id and (field.name != vals['name']):
-                    raise except_orm(_('Error!'),  _('Renaming the sparse field "%s" is not allowed'%field.name))           
-                
+                    raise except_orm(_('Error!'),  _('Renaming sparse field "%s" is not allowed')%field.name)
+
         column_rename = None # if set, *one* column can be renamed here
         obj = None
         models_patch = {}    # structs of (obj, [(field, prop, change_to),..])