diff --git a/addons/portal_project_issue/security/portal_security.xml b/addons/portal_project_issue/security/portal_security.xml
index f6cd8d89be7..120611cec0e 100644
--- a/addons/portal_project_issue/security/portal_security.xml
+++ b/addons/portal_project_issue/security/portal_security.xml
@@ -5,14 +5,13 @@
         <record id="portal_issue_rule" model="ir.rule">
             <field name="name">Project/Issue: portal users: public or portal and following</field>
             <field name="model_id" ref="project_issue.model_project_issue"/>
-            <field name="domain_force">['|',
-                                            ('project_id.privacy_visibility', '=', 'public'),
-                                            '&amp;',
-                                                ('project_id.privacy_visibility', 'in', ['portal', 'followers']),
-                                                '|',
-                                                    ('message_follower_ids','in', [user.partner_id.id]),
-                                                    ('user_id', '=', user.id),
-                                        ]</field>
+            <field name="domain_force">[ '&amp;',
+                                             ('project_id.privacy_visibility', 'in', ['public', 'portal', 'followers']),
+                                             '|', '|',
+                                                ('message_follower_ids','in', [user.partner_id.id]),
+                                                ('user_id', '=', user.id),
+                                                ('partner_id', 'child_of', [user.commercial_partner_id.id])
+                                       ]</field>
             <field name="groups" eval="[(4, ref('portal.group_portal'))]"/>
         </record>