--- a/doc/tutorials/advanced/part02_security.rst	Wed Mar 18 11:45:35 2020 +0100
+++ b/doc/tutorials/advanced/part02_security.rst	Wed Mar 18 11:29:30 2020 +0100
@@ -19,7 +19,7 @@
 
 * managers (e.g. me) can see everything
 * only authenticated users can see people
-* everyone can see classifier entities, such as tag and zone
+* everyone can see classifier entities, such as tag
 
 Also:
 
@@ -141,7 +141,6 @@
     from cubicweb_file.schema import File
     from cubicweb_comment.schema import Comment
     from cubicweb_person.schema import Person
-    from cubicweb_zone.schema import Zone
     from cubicweb_tag.schema import Tag
 
     Folder.__permissions__ = VISIBILITY_PERMISSIONS
@@ -149,7 +148,6 @@
     Comment.__permissions__ = VISIBILITY_PERMISSIONS.copy()
     Comment.__permissions__['add'] = ('managers', 'users',)
     Person.__permissions__ = AUTH_ONLY_PERMISSIONS
-    Zone.__permissions__ = CLASSIFIERS_PERMISSIONS
     Tag.__permissions__ = CLASSIFIERS_PERMISSIONS
 
 What's important in there: