diff --git a/addons/portal/security/portal_security.xml b/addons/portal/security/portal_security.xml
index 3d5cf47b0be..ee0af785599 100644
--- a/addons/portal/security/portal_security.xml
+++ b/addons/portal/security/portal_security.xml
@@ -5,7 +5,8 @@
         <!-- The portal group -->
         <record id="group_portal" model="res.groups">
             <field name="name">Portal</field>
-            <field name="comment">Portal members can access information through the portal menu.  Also, they are chrooted in this specific menu.</field>
+            <field name="comment">Portal members have specific access rights (such as record rules and restricted menus).
+                They usually do not belong to the usual OpenERP groups.</field>
             <field name="is_portal" eval="True"/>
             <!-- Insert the template user from auth_signup in the portal members group -->
             <field name="users" eval="[(4,ref('auth_signup.default_template_user'))]"/>