diff --git a/addons/portal_claim/security/portal_security.xml b/addons/portal_claim/security/portal_security.xml
index a88c8ce7835..e177b07eab9 100644
--- a/addons/portal_claim/security/portal_security.xml
+++ b/addons/portal_claim/security/portal_security.xml
@@ -5,7 +5,7 @@
         <record id="portal_stock_picking_user_rule" model="ir.rule">
             <field name="name">Portal Personal Claims</field>
             <field ref="crm_claim.model_crm_claim" name="model_id"/>
-            <field name="domain_force">[('message_follower_ids','in',user.partner_id.id)]</field>
+            <field name="domain_force">[('message_follower_ids','in', [user.partner_id.id])]</field>
             <field name="groups" eval="[(4, ref('portal.group_portal'))]"/>
         </record>
 
diff --git a/addons/portal_project/security/portal_security.xml b/addons/portal_project/security/portal_security.xml
index 316fb1b4a15..1247d25365a 100644
--- a/addons/portal_project/security/portal_security.xml
+++ b/addons/portal_project/security/portal_security.xml
@@ -5,7 +5,7 @@
         <record id="portal_task_rule" model="ir.rule">
             <field name="name">Portal Personal Task</field>
             <field ref="project.model_project_task" name="model_id"/>
-            <field name="domain_force">[('message_follower_ids','in',user.partner_id.id)]</field>
+            <field name="domain_force">[('message_follower_ids','in', [user.partner_id.id])]</field>
             <field name="groups" eval="[(4, ref('portal.group_portal'))]"/>
         </record>
 
diff --git a/addons/portal_project_issue/security/portal_security.xml b/addons/portal_project_issue/security/portal_security.xml
index d58e160051b..9527f1f9628 100644
--- a/addons/portal_project_issue/security/portal_security.xml
+++ b/addons/portal_project_issue/security/portal_security.xml
@@ -5,7 +5,7 @@
         <record id="portal_issue_rule" model="ir.rule">
             <field name="name">Portal Personal Issues</field>
             <field ref="project_issue.model_project_issue" name="model_id"/>
-            <field name="domain_force">[('message_follower_ids','in',user.partner_id.id)]</field>
+            <field name="domain_force">[('message_follower_ids','in', [user.partner_id.id])]</field>
             <field name="groups" eval="[(4, ref('portal.group_portal'))]"/>
         </record>