diff --git a/portal_event_tickets/tests/__init__.py b/portal_event_tickets/tests/__init__.py
index 14ea249..c2e1015 100644
--- a/portal_event_tickets/tests/__init__.py
+++ b/portal_event_tickets/tests/__init__.py
@@ -1,2 +1,3 @@
 from . import test_ticket_transfer
 from . import test_ticket_pdf
+from . import test_ticket_upgrade
diff --git a/website_sale_refund/models/sale_order.py b/website_sale_refund/models/sale_order.py
index 59cba5b..436ce31 100644
--- a/website_sale_refund/models/sale_order.py
+++ b/website_sale_refund/models/sale_order.py
@@ -1,4 +1,4 @@
-from odoo import fields, models
+from odoo import api, fields, models
 
 
 class SaleOrder(models.Model):
@@ -90,6 +90,11 @@ class SaleOrderLine(models.Model):
         help="Order line that is used for refund",
     )
 
+    @api.depends("refund_source_line_id")
+    def _compute_price_unit(self):
+        refund_lines = self.filtered("refund_source_line_id")
+        return super(SaleOrderLine, self - refund_lines)._compute_price_unit()
+
     def _cancel_line(self, origin=None):
         # Origin - sale order, that cancels this line
         # TODO: cancel delivery, etc
diff --git a/website_sale_refund/tests/__init__.py b/website_sale_refund/tests/__init__.py
new file mode 100644
index 0000000..6a9ae53
--- /dev/null
+++ b/website_sale_refund/tests/__init__.py
@@ -0,0 +1 @@
+from . import test_sale_prices
diff --git a/website_sale_refund/tests/test_sale_prices.py b/website_sale_refund/tests/test_sale_prices.py
new file mode 100644
index 0000000..056c238
--- /dev/null
+++ b/website_sale_refund/tests/test_sale_prices.py
@@ -0,0 +1,25 @@
+from odoo.tests import tagged
+
+from odoo.addons.sale.tests.common import SaleCommon
+
+
+@tagged("post_install", "-at_install")
+class TestSalePrices(SaleCommon):
+    def test_update_prices(self):
+        old_sale_order = self.sale_order
+        old_order_line = old_sale_order.order_line.filtered("price_unit")[0]
+
+        new_sale_order = self.env["sale.order"].create(
+            {
+                "partner_id": old_sale_order.partner_id.id,
+            }
+        )
+        refund_qty = 1
+        expected_refund_price = -old_order_line.price_unit * refund_qty
+        refund_order_line = new_sale_order.add_refund_line(
+            old_order_line, "Test refund order line", qty=refund_qty
+        )
+
+        self.assertEqual(refund_order_line.price_unit, expected_refund_price)
+        new_sale_order._recompute_prices()
+        self.assertEqual(refund_order_line.price_unit, expected_refund_price)