diff --git a/addons/sale_timesheet/models/sale_order.py b/addons/sale_timesheet/models/sale_order.py
index cbaab9e9fa7..ffe78b9dd41 100644
--- a/addons/sale_timesheet/models/sale_order.py
+++ b/addons/sale_timesheet/models/sale_order.py
@@ -151,7 +151,7 @@ class SaleOrderLine(models.Model):
 
         lines_by_timesheet = self.filtered(lambda sol: sol.qty_delivered_method == 'timesheet')
         domain = lines_by_timesheet._timesheet_compute_delivered_quantity_domain()
-        mapping = lines_by_timesheet._get_delivered_quantity_by_analytic(domain)
+        mapping = lines_by_timesheet.sudo()._get_delivered_quantity_by_analytic(domain)
         for line in lines_by_timesheet:
             line.qty_delivered = mapping.get(line.id, 0.0)