diff --git a/addons/hr_timesheet_invoice/hr_timesheet_invoice.py b/addons/hr_timesheet_invoice/hr_timesheet_invoice.py
index a24208d6ce0..e8b90690fdc 100644
--- a/addons/hr_timesheet_invoice/hr_timesheet_invoice.py
+++ b/addons/hr_timesheet_invoice/hr_timesheet_invoice.py
@@ -77,13 +77,6 @@ class account_analytic_account(osv.osv):
         'pricelist_id': lambda self, cr, uid, ctx: ctx.get('pricelist_id', False),
     }
 
-    def on_change_use_timesheets(self, cr, uid, ids, use_timesheets, context=None):
-        res = {'value': {}}
-        if use_timesheets:
-            ir_model_obj = self.pool.get('ir.model.data')
-            res['value']['to_invoice'] = ir_model_obj.get_object_reference(cr, uid, 'hr_timesheet_invoice', 'timesheet_invoice_factor1')[1]
-        return res
-
     def on_change_partner_id(self, cr, uid, ids, partner_id, name, context=None):
         res = super(account_analytic_account, self).on_change_partner_id(cr, uid, ids, partner_id, name, context=context)
         part = self.pool.get('res.partner').browse(cr, uid, partner_id, context=context)
diff --git a/addons/hr_timesheet_invoice/hr_timesheet_invoice_view.xml b/addons/hr_timesheet_invoice/hr_timesheet_invoice_view.xml
index 58dca6bd2d5..4b1751abc50 100644
--- a/addons/hr_timesheet_invoice/hr_timesheet_invoice_view.xml
+++ b/addons/hr_timesheet_invoice/hr_timesheet_invoice_view.xml
@@ -14,7 +14,7 @@
                     </group>
                  </xpath>
                 <xpath expr="//field[@name='use_timesheets']" position="replace">
-                    <field name="use_timesheets" on_change="on_change_use_timesheets(use_timesheets, context)"/>
+                    <field name="use_timesheets"/>
                 </xpath>
                 <xpath expr="/form/sheet" position='before'>
                     <header>