diff --git a/addons/sale_project/controllers/portal.py b/addons/sale_project/controllers/portal.py
index 43cecdfb4a0..b9a3c94b34d 100644
--- a/addons/sale_project/controllers/portal.py
+++ b/addons/sale_project/controllers/portal.py
@@ -29,16 +29,13 @@ class SaleProjectCustomerPortal(ProjectCustomerPortal):
             del values['customer']
         if not project or project.sudo().allow_billable:
             values['sale_order'] = {'input': 'sale_order', 'label': _lt('Search in Sales Order'), 'order': 8}
-            values['sale_line'] = {'input': 'sale_line', 'label': _lt('Search in Sales Order Item'), 'order': 9}
             values['invoice'] = {'input': 'invoice', 'label': _lt('Search in Invoice'), 'order': 10}
         return dict(sorted(values.items(), key=lambda item: item[1]["order"]))
 
     def _task_get_search_domain(self, search_in, search):
         search_domain = [super()._task_get_search_domain(search_in, search)]
         if search_in in ('sale_order', 'all'):
-            search_domain.append([('sale_order_id.name', 'ilike', search)])
-        if search_in in ('sale_line', 'all'):
-            search_domain.append([('sale_line_id.name', 'ilike', search)])
+            search_domain.append(['|', ('sale_order_id.name', 'ilike', search), ('sale_line_id.name', 'ilike', search)])
         if search_in in ('invoice', 'all'):
             search_domain.append([('sale_order_id.invoice_ids.name', 'ilike', search)])
         return OR(search_domain)