diff --git a/addons/sale/sale.py b/addons/sale/sale.py
index c1ea2ea6a8e..62b91346706 100644
--- a/addons/sale/sale.py
+++ b/addons/sale/sale.py
@@ -703,6 +703,7 @@ class sale_order(osv.osv):
             for proc_id in proc_ids:
                 wf_service = netsvc.LocalService("workflow")
                 wf_service.trg_validate(uid, 'procurement.order', proc_id, 'button_confirm', cr)
+                wf_service.trg_validate(uid, 'procurement.order', proc_id, 'button_check', cr)
 
             if order.state == 'shipping_except':
                 val['state'] = 'progress'