diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index e3d3a3be1cb..a1a0cbc3fca 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -1360,6 +1360,17 @@ class stock_production_lot(osv.osv):
                 name = '%s [%s]' % (name, record['ref'])
             res.append((record['id'], name))
         return res
+    
+    def name_search(self, cr, uid, name, args=None, operator='ilike', context=None, limit=100):
+        args = args or []
+        ids = []
+        if name:
+            ids = self.search(cr, uid, [('prefix', '=', name)] + args, limit=limit, context=context)
+            if not ids:
+                ids = self.search(cr, uid, [('name', operator, name)] + args, limit=limit, context=context)
+        else:
+            ids = self.search(cr, uid, args, limit=limit, context=context)
+        return self.name_get(cr, uid, ids, context)
 
     _name = 'stock.production.lot'
     _description = 'Production lot'