diff --git a/addons/website_sale/models/sale_order_line.py b/addons/website_sale/models/sale_order_line.py
index 558d74fbd23..ff6db4e2521 100644
--- a/addons/website_sale/models/sale_order_line.py
+++ b/addons/website_sale/models/sale_order_line.py
@@ -1,7 +1,6 @@
-# -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from odoo import api, models, fields, _
+from odoo import _, api, fields, models
 
 
 class SaleOrderLine(models.Model):
@@ -48,6 +47,22 @@ class SaleOrderLine(models.Model):
     def get_description_following_lines(self):
         return self.name.splitlines()[1:]
 
+    def _get_pricelist_price_before_discount(self):
+        """On ecommerce orders, the base price must always be the sales price."""
+        self.ensure_one()
+        self.product_id.ensure_one()
+
+        if self.order_id.website_id:
+            return self.env['product.pricelist.item']._compute_price_before_discount(
+                product=self.product_id.with_context(**self._get_product_price_context()),
+                quantity=self.product_uom_qty or 1.0,
+                uom=self.product_uom,
+                date=self.order_id.date_order,
+                currency=self.currency_id,
+            )
+
+        return super()._get_pricelist_price_before_discount()
+
     def _get_shop_warning(self, clear=True):
         self.ensure_one()
         warn = self.shop_warning
diff --git a/addons/website_sale/tests/test_website_sale_pricelist.py b/addons/website_sale/tests/test_website_sale_pricelist.py
index d97bf0950e0..cd591a44778 100644
--- a/addons/website_sale/tests/test_website_sale_pricelist.py
+++ b/addons/website_sale/tests/test_website_sale_pricelist.py
@@ -240,8 +240,8 @@ class TestWebsitePriceList(TransactionCase):
         so.pricelist_id = promo_pricelist
         with MockRequest(self.env, website=current_website, sale_order_id=so.id):
             so._cart_update(product_id=product.id, line_id=sol.id, set_qty=500)
-        self.assertEqual(sol.price_unit, 37.0, 'Both reductions should be applied')
-        self.assertEqual(sol.discount, 25.0, 'Both reductions should be applied')
+        self.assertEqual(sol.price_unit, 100.0, 'Both reductions should be applied')
+        self.assertEqual(sol.discount, 72.25, 'Both reductions should be applied')
         self.assertEqual(sol.price_total, 13875)
 
     def test_pricelist_with_no_list_price(self):