diff --git a/rma_account/models/rma_order_line.py b/rma_account/models/rma_order_line.py
index 2b944dcbc..74bca60d7 100644
--- a/rma_account/models/rma_order_line.py
+++ b/rma_account/models/rma_order_line.py
@@ -121,6 +121,20 @@ def _compute_refund_count(self):
         store=True,
     )
 
+    commercial_partner_id = fields.Many2one(
+        "res.partner",
+        string="Commercial Entity",
+        store=True,
+        readonly=True,
+        compute="_compute_commercial_partner_id",
+        ondelete="restrict",
+    )
+
+    @api.depends("partner_id")
+    def _compute_commercial_partner_id(self):
+        for rma_line in self:
+            rma_line.commercial_partner_id = rma_line.partner_id.commercial_partner_id
+
     @api.onchange("product_id", "partner_id")
     def _onchange_product_id(self):
         """Domain for sale_line_id is computed here to make it dynamic."""
diff --git a/rma_account/views/rma_order_line_view.xml b/rma_account/views/rma_order_line_view.xml
index cb38a14b7..b2198885f 100644
--- a/rma_account/views/rma_order_line_view.xml
+++ b/rma_account/views/rma_order_line_view.xml
@@ -6,13 +6,13 @@
         <field name="inherit_id" ref="rma.view_rma_line_supplier_form" />
         <field name="arch" type="xml">
             <group name="main_info" position="inside">
+                <field name="commercial_partner_id" invisible="1" />
                 <field
                     name="account_move_line_id"
                     options="{'no_create': True}"
                     context="{'rma': True}"
-                    domain="[('move_id.move_type', 'not in', ['entry','out_invoice','out_refund']), '|',
-                                ('move_id.partner_id', '=', partner_id),
-                                ('move_id.partner_id', 'child_of', partner_id)]"
+                    domain="[('move_id.move_type', 'not in', ['entry','out_invoice','out_refund']),
+                                ('partner_id', '=', commercial_partner_id)]"
                     attrs="{'invisible':[('type', '!=', 'supplier')]}"
                 />
             </group>
@@ -46,13 +46,13 @@
                     </button>
             </button>
             <group name="main_info" position="inside">
+                <field name="commercial_partner_id" invisible="1" />
                 <field
                     name="account_move_line_id"
                     options="{'no_create': True}"
                     context="{'rma': True}"
-                    domain="[('move_id.move_type', '!=', 'entry'), '|',
-                                ('move_id.partner_id', '=', partner_id),
-                                ('move_id.partner_id', 'child_of', partner_id)]"
+                    domain="[('move_id.move_type', '!=', 'entry'),
+                                ('partner_id', '=', commercial_partner_id)]"
                     attrs="{'invisible':[('type', '!=', 'customer')]}"
                 />
             </group>