diff --git a/addons/sale_stock/models/account_move.py b/addons/sale_stock/models/account_move.py
index a21c5aebd79..1ebd6f8b52d 100644
--- a/addons/sale_stock/models/account_move.py
+++ b/addons/sale_stock/models/account_move.py
@@ -70,6 +70,9 @@ class AccountMove(models.Model):
             qties_per_lot[sml.lot_id] += qty_done
 
         for lot, qty in qties_per_lot.items():
+            # access the lot as a superuser in order to avoid an error
+            # when a user prints an invoice without having the stock access
+            lot = lot.sudo()
             if float_is_zero(invoiced_qties[lot.product_id], precision_rounding=lot.product_uom_id.rounding) \
                     or float_compare(qty, 0, precision_rounding=lot.product_uom_id.rounding) <= 0:
                 continue