diff --git a/README.rst b/README.rst
index 680628d1f..6868ff14d 100644
--- a/README.rst
+++ b/README.rst
@@ -63,7 +63,7 @@ Notes:
 
 .. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
    :alt: Try me on Runbot
-   :target: https://runbot.odoo-community.org/runbot/134/9.0
+   :target: https://runbot.odoo-community.org/runbot/
 
 
 Known issues / Roadmap
@@ -93,6 +93,7 @@ Contributors
 ------------
 
 * Antonio Espinosa <antonioea@antiun.com>
+* Denis Roussel <denis.roussel@acsone.eu>
 * Ferdinand Gassauer <office@chrcar.at>
 * Gerhard Könighofer <gerhard.koenighofer@swing-system.com>
 * Laurent Mignon <laurent.mignon@acsone.eu>
diff --git a/__openerp__.py b/__openerp__.py
index 11c0f0d9e..6c1c7ac43 100644
--- a/__openerp__.py
+++ b/__openerp__.py
@@ -11,7 +11,7 @@
 {
     'name': 'Partner Identification Numbers',
     'category': 'Customer Relationship Management',
-    'version': '9.0.1.0.0',
+    'version': '8.0.1.0.0',
     'data': [
         'views/res_partner_id_category_view.xml',
         'views/res_partner_id_number_view.xml',
diff --git a/models/res_partner_id_category.py b/models/res_partner_id_category.py
index 71508512e..11dbf3554 100644
--- a/models/res_partner_id_category.py
+++ b/models/res_partner_id_category.py
@@ -11,7 +11,7 @@
 
 
 from openerp import api, models, fields
-from openerp.exceptions import ValidationError, UserError
+from openerp.exceptions import ValidationError, Warning
 from openerp.tools.safe_eval import safe_eval
 from openerp.tools.translate import _
 
@@ -62,7 +62,7 @@ class ResPartnerIdCategory(models.Model):
                       mode='exec',
                       nocopy=True)
         except Exception as e:
-            raise UserError(
+            raise Warning(
                 _('Error when evaluating the id_category validation code:'
                   ':\n %s \n(%s)') % (self.name, e))
         if eval_context.get('failed', False):