diff --git a/product_rental_delay_management/models/stock_picking.py b/product_rental_delay_management/models/stock_picking.py
index e829fb2..397d4ba 100644
--- a/product_rental_delay_management/models/stock_picking.py
+++ b/product_rental_delay_management/models/stock_picking.py
@@ -14,6 +14,9 @@ class StockPicking(models.Model):
         "product.delayed.lines", "product_delay_id", string="Delayed Hours "
     )
     is_delayed = fields.Boolean(string="Is Delayed")
+    total_amount = fields.Float(
+        string="Total Amount", compute="_compute_total", store=True
+    )
 
     @api.depends("product_delay_line_ids")
     def _compute_total(self):