diff --git a/addons/sale/wizard/sale_line_invoice.py b/addons/sale/wizard/sale_line_invoice.py
index fa0b46daa7f..3c96c527dad 100644
--- a/addons/sale/wizard/sale_line_invoice.py
+++ b/addons/sale/wizard/sale_line_invoice.py
@@ -100,7 +100,7 @@ class sale_order_line_make_invoice(osv.osv_memory):
                     flag = False
                     break
             if flag:
-                workflow.trg_validate(uid, 'sale.order', order.id, 'manual_invoice', cr)
+                workflow.trg_validate(uid, 'sale.order', order.id, 'all_lines', cr)
 
         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!'))