diff --git a/delivery_hibou/models/stock.py b/delivery_hibou/models/stock.py
index 1831178e..6f087446 100644
--- a/delivery_hibou/models/stock.py
+++ b/delivery_hibou/models/stock.py
@@ -47,7 +47,7 @@ class StockPicking(models.Model):
     package_carrier_tracking_ref = fields.Char(string='Package Tracking Numbers', compute='_compute_package_carrier_tracking_ref')
     commercial_partner_id = fields.Many2one('res.partner', related='partner_id.commercial_partner_id')
 
-    @api.depends('package_ids.carrier_tracking_ref')
+    @api.depends('move_line_ids.package_id.carrier_tracking_ref')
     def _compute_package_carrier_tracking_ref(self):
         for picking in self:
             package_refs = picking.package_ids.filtered('carrier_tracking_ref').mapped('carrier_tracking_ref')