diff --git a/addons/portal/portal_data.xml b/addons/portal/portal_data.xml
index e7085b0e442..5fc1e07982c 100644
--- a/addons/portal/portal_data.xml
+++ b/addons/portal/portal_data.xml
@@ -32,6 +32,7 @@
                     'default_model': 'mail.group',
                     'default_res_id': ref('company_news_feed'),
                 },
+                'readonly': True,
                 'show_link': False,
                 'res_model': 'mail.message',
                 'thread_level': 1,
@@ -64,6 +65,7 @@
                     'default_model': 'mail.group',
                     'default_res_id': ref('company_jobs'),
                 },
+                'readonly': True,
                 'show_link': False,
                 'res_model': 'mail.message',
                 'thread_level': 1,