diff --git a/odex25_purchase/purchase_requisition_custom/models/purchase_order.py b/odex25_purchase/purchase_requisition_custom/models/purchase_order.py
index f93012ed9..f311db563 100644
--- a/odex25_purchase/purchase_requisition_custom/models/purchase_order.py
+++ b/odex25_purchase/purchase_requisition_custom/models/purchase_order.py
@@ -677,11 +677,13 @@ class Attachment(models.Model):
 
 
 class ProductCustom(models.Model):
-    _inherit = 'product.product'
+    _inherit = 'product.product' 
 
     @api.model
     def _name_search(self, name, args=None, operator='ilike', limit=100, name_get_uid=None):
         product_ids = []
+        if args is None:
+            args = []
         res = super(ProductCustom, self)._name_search(name, args=args, operator=operator, limit=limit,
                                                       name_get_uid=name_get_uid)
         if name: