diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index 5678b4ec018..778863841c7 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -1053,7 +1053,9 @@ class purchase_order_line(osv.osv):
         procurement_obj = self.pool.get('procurement.order')
         procurement_ids_to_except = procurement_obj.search(cr, uid, [('purchase_line_id', 'in', ids)], context=context)
         if procurement_ids_to_except:
-            self.pool['procurement.order'].write(cr, uid, procurement_ids_to_except, {'state': 'exception'}, context=context)
+            for po_id in procurement_ids_to_except:
+                procurement_obj.message_post(cr, uid, po_id, body=_('Purchase order line deleted.'), context=context)
+            procurement_obj.write(cr, uid, procurement_ids_to_except, {'state': 'exception'}, context=context)
         return super(purchase_order_line, self).unlink(cr, uid, ids, context=context)
 
     def onchange_product_uom(self, cr, uid, ids, pricelist_id, product_id, qty, uom_id,