diff --git a/purchase_sale_inter_company/tests/test_inter_company_purchase_sale.py b/purchase_sale_inter_company/tests/test_inter_company_purchase_sale.py
index a818bf2f207..e74d53de261 100644
--- a/purchase_sale_inter_company/tests/test_inter_company_purchase_sale.py
+++ b/purchase_sale_inter_company/tests/test_inter_company_purchase_sale.py
@@ -605,6 +605,7 @@ def test_block_manual_validation(self):
         """
         self.company_a.sync_picking = True
         self.company_b.sync_picking = True
+        self.company_a.block_po_manual_picking_validation = True
         self.company_b.block_po_manual_picking_validation = True
         purchase = self._create_purchase_order(
             self.partner_company_b, self.consumable_product
@@ -615,4 +616,4 @@ def test_block_manual_validation(self):
         self.assertEqual(po_picking_id.state, "waiting")
         # The manual validation should be blocked
         with self.assertRaises(UserError):
-            po_picking_id.button_validate()
+            po_picking_id.with_user(self.user_company_a).button_validate()