diff --git a/addons/sale/models/sale_order_line.py b/addons/sale/models/sale_order_line.py
index 74934dd11cf..f3530107460 100644
--- a/addons/sale/models/sale_order_line.py
+++ b/addons/sale/models/sale_order_line.py
@@ -1219,7 +1219,6 @@ class SaleOrderLine(models.Model):
                 'quantity': self.product_uom_qty,
                 'price': self.price_unit,
                 'readOnly': self.order_id._is_readonly() or (self.product_id.sale_line_warn == "block"),
-                'warning': self.product_id.sale_line_warn_msg,
             }
             if self.product_id.sale_line_warn_msg:
                 res['warning'] = self.product_id.sale_line_warn_msg