diff --git a/bemade_fsm/__manifest__.py b/bemade_fsm/__manifest__.py
index ddd94e1..e981190 100644
--- a/bemade_fsm/__manifest__.py
+++ b/bemade_fsm/__manifest__.py
@@ -20,7 +20,7 @@
 ########################################################################################
 {
     "name": "Improved Field Service Management",
-    "version": "17.0.0.4.2",
+    "version": "17.0.0.4.1",
     "summary": (
         "Adds functionality necessary for managing field service operations at Durpro."
     ),
diff --git a/bemade_fsm/models/sale_order.py b/bemade_fsm/models/sale_order.py
index d84b9ad..b36c5c5 100644
--- a/bemade_fsm/models/sale_order.py
+++ b/bemade_fsm/models/sale_order.py
@@ -5,7 +5,8 @@ class SaleOrder(models.Model):
     _inherit = "sale.order"
 
     valid_equipment_ids = fields.One2many(
-        comodel_name="fsm.equipment", related="partner_id.owned_equipment_ids"
+        comodel_name="fsm.equipment",
+        related="partner_id.commercial_partner_id.owned_equipment_ids",
     )
 
     default_equipment_ids = fields.Many2many(