diff --git a/addons/sale/wizard/sale_line_invoice.py b/addons/sale/wizard/sale_line_invoice.py
index d8a7d05a10e..5f979ead31e 100644
--- a/addons/sale/wizard/sale_line_invoice.py
+++ b/addons/sale/wizard/sale_line_invoice.py
@@ -101,7 +101,6 @@ class sale_order_line_make_invoice(osv.osv_memory):
                     break
             if flag:
                 wf_service.trg_validate(uid, 'sale.order', order.id, 'manual_invoice', cr)
-                sales_order_obj.write(cr, uid, [order.id], {'state': 'progress'})
 
         if not invoices:
             raise osv.except_osv(_('Warning!'), _('Invoice cannot be created for this Sales Order Line due to one of the following reasons:\n1.The state of this sales order line is either "draft" or "cancel"!\n2.The Sales Order Line is Invoiced!'))