diff --git a/addons/sale/res_config.py b/addons/sale/res_config.py
index a00d701f97c..59afbb7c8de 100644
--- a/addons/sale/res_config.py
+++ b/addons/sale/res_config.py
@@ -180,12 +180,15 @@ class sale_configuration(osv.osv_memory):
             self.set_tax_policy(cr, uid, ids, context=context)
         if tax_policy == 'global_on_order':
             res['value'].update({'group_sale_taxes_global_on_order': True})
+            res['value'].update({'group_sale_taxes_on_order_line': False})
+
         elif tax_policy == 'on_order_line':
             res['value'].update({'group_sale_taxes_on_order_line': True})
+            res['value'].update({'group_sale_taxes_global_on_order': False})
         else:
             res['value'].update({'group_sale_taxes_on_order_line': False, 'group_sale_taxes_global_on_order': False})
         return res
-    
+
     def set_default_taxes(self, cr, uid, ids, context=None):
         ir_values_obj = self.pool.get('ir.values')
         taxes = self._check_default_tax(cr, uid, context=context)
diff --git a/addons/sale/res_config_view.xml b/addons/sale/res_config_view.xml
index e27b33ccdc7..61d1207b779 100644
--- a/addons/sale/res_config_view.xml
+++ b/addons/sale/res_config_view.xml
@@ -40,6 +40,8 @@
                            <group col="2" colspan="1">
                                 <field name="tax_policy" on_change="onchange_tax_policy(tax_policy)"/>
                            </group>
+                           <field name="group_sale_taxes_global_on_order" invisible="1"/>
+                           <field name="group_sale_taxes_on_order_line" invisible="1"/>
                            <newline/>
                            <field name="module_sale_margin"/>
                            <newline/>
diff --git a/addons/sale/security/sale_security.xml b/addons/sale/security/sale_security.xml
index 7e2d58d32f8..b5e681b6f13 100644
--- a/addons/sale/security/sale_security.xml
+++ b/addons/sale/security/sale_security.xml
@@ -45,7 +45,6 @@
         ref('base.group_sale_delivery_address'),
         ref('base.group_sale_disc_per_sale_order_line'),
         ref('base.group_sale_taxes_global_on_order'),
-        ref('base.group_sale_taxes_on_order_line'),
         ])]"/>
     </record>