diff --git a/addons/base_setup/wizard/wizard_base_setup.py b/addons/base_setup/wizard/wizard_base_setup.py
index b37efde2a20..67a13f0f976 100644
--- a/addons/base_setup/wizard/wizard_base_setup.py
+++ b/addons/base_setup/wizard/wizard_base_setup.py
@@ -62,6 +62,20 @@ view_form_charts = """<?xml version="1.0"?>
     </group>
 </form>"""
 
+view_form_vatcheck = """<?xml version="1.0"?>
+<form string="Setup">
+    <image name="gtk-dialog-info" colspan="2"/>
+    <group>
+        <separator string="Install 'base_vat_check' module" colspan="2"/>
+        <newline/>
+        <field name="vatcheck" align="0.0"/>
+        <newline/>
+        <label string="This module allow you to force the validation of the VAT number. This module is optional but highly recommanded." colspan="2" align="0.0"/>
+        <newline/>
+        <label string="If you don't install it now, you'll be able to install it through the Administration menu." colspan="2" align="0.0"/>
+    </group>
+</form>"""
+
 view_form_company = """<?xml version="1.0"?>
 <form string="Setup">
     <image name="gtk-dialog-info" colspan="2"/>
@@ -97,6 +111,8 @@ view_form_update = """<?xml version="1.0"?>
         <newline/>
         <field name="charts" align="0.0" readonly="1"/>
         <newline/>
+        <field name="vatcheck" align="0.0" readonly="1"/>
+        <newline/>
         <field name="name" align="0.0" readonly="1"/>
     </group>
 </form>
@@ -185,12 +201,16 @@ class wizard_base_setup(wizard.interface):
     def _update(self, cr, uid, data, context):
         pool=pooler.get_pool(cr.dbname)
         form=data['form']
-        if 'profile' in data['form'] and data['form']['profile'] > 0:
-            module_obj=pool.get('ir.module.module')
-            module_obj.state_update(cr, uid, [data['form']['profile']], 'to install', ['uninstalled'], context)
-        if 'charts' in data['form'] and data['form']['charts'] > 0:
-            module_obj=pool.get('ir.module.module')
-            module_obj.state_update(cr, uid, [data['form']['charts']], 'to install', ['uninstalled'], context)
+        module_obj=pool.get('ir.module.module')
+
+        if 'profile' in form and form['profile'] > 0:
+            module_obj.state_update(cr, uid, [form['profile']], 'to install', ['uninstalled'], context)
+        if 'charts' in form and form['charts'] > 0:
+            module_obj.state_update(cr, uid, [form['charts']], 'to install', ['uninstalled'], context)
+        if 'vatcheck' in form and form['vatcheck']:
+            mid = module_obj.search(cr, uid, [('name', '=', 'base_vat_check')], context=context)
+            if mid:
+                module_obj.state_update(cr, uid, mid, 'to install', ['uninstalled'], context)
 
         company_obj=pool.get('res.company')
         partner_obj=pool.get('res.partner')
@@ -271,7 +291,7 @@ class wizard_base_setup(wizard.interface):
     def _previous(self, cr, uid, data, context):
         if 'profile' not in data['form'] or data['form']['profile'] <= 0:
             return 'init'
-        return 'charts'
+        return 'vatcheck'
 
     def _config(self, cr, uid, data, context=None):
         users_obj=pooler.get_pool(cr.dbname).get('res.users')
@@ -307,6 +327,11 @@ class wizard_base_setup(wizard.interface):
             'default': -1,
             'required': True,
         },
+        'vatcheck':{
+            'string': "Install 'base_vat_check' module",
+            'type': 'boolean',
+            'default': False,
+        },
         'name':{
             'string': 'Company Name',
             'type': 'char',
@@ -402,6 +427,15 @@ IBAN: BE74 1262 0121 6907 - SWIFT: CPDF BE71 - VAT: BE0477.472.701""",
             'result': {'type': 'form', 'arch': view_form_charts, 'fields': fields,
                 'state':[
                     ('init', 'Previous', 'gtk-go-back'),
+                    ('vatcheck', 'Next', 'gtk-go-forward', True)
+                ]
+            }
+        },
+        'vatcheck':{
+            'actions':[],
+            'result': {'type': 'form', 'arch': view_form_vatcheck, 'fields': fields,
+                'state': [
+                    ('charts', 'Previous', 'gtk-go-back'),
                     ('company', 'Next', 'gtk-go-forward', True)
                 ]
             }
@@ -424,7 +458,7 @@ IBAN: BE74 1262 0121 6907 - SWIFT: CPDF BE71 - VAT: BE0477.472.701""",
             'result': {'type': 'form', 'arch': view_form_update, 'fields': fields,
                 'state': [
                     ('company', 'Previous', 'gtk-go-back'),
-                    ('finish', 'Install', 'gtk-ok', True)
+                    ('finish', 'Install', 'gtk-save', True)
                 ]
             }
         },