diff --git a/custom_p/models/sale_order_line.py b/custom_p/models/sale_order_line.py
index 76622a2123..0b215e933e 100644
--- a/custom_p/models/sale_order_line.py
+++ b/custom_p/models/sale_order_line.py
@@ -94,6 +94,6 @@ def _get_invoice_qty(self):
     @api.model
     def create(self, values):
         result = super(SaleOrderLine, self).create(values)
-        if not self.order_id.commitment_date:
+        if not result.order_id.commitment_date:
             result.order_id.commitment_date = result.order_id.expected_date
         return result