diff --git a/addons/portal/security/portal_security.xml b/addons/portal/security/portal_security.xml
index b2a76800023..02080bdc0ab 100644
--- a/addons/portal/security/portal_security.xml
+++ b/addons/portal/security/portal_security.xml
@@ -5,7 +5,7 @@
         <record id="portal_read_own_res_partner" model="ir.rule">
             <field name="name">res_partner: read access on my partner</field>
             <field name="model_id" ref="base.model_res_partner"/>
-            <field name="domain_force">[('user_ids', 'in', user.id)]</field>
+            <field name="domain_force">[('id', 'child_of', user.commercial_partner_id.id)]</field>
             <field name="groups" eval="[(4, ref('group_portal')), (4, ref('group_anonymous'))]"/>
             <field name="perm_create" eval="False"/>
             <field name="perm_unlink" eval="False"/>