--- a/src/pyams_utils/site.py	Wed Apr 11 16:41:53 2018 +0200
+++ b/src/pyams_utils/site.py	Thu Apr 12 10:14:52 2018 +0200
@@ -49,7 +49,7 @@
 
     BaseSiteRoot defines a basic ACL which gives all permissions to system administrator,
     and 'public' permission to everyone. But this ACL is generally overriden in subclasses
-    which also inherit from :ref:`pyams_security.security.ProtectedObject`.
+    which also inherit from :class:`pyams_security.security.ProtectedObject`.
     """
 
     __acl__ = [(Allow, 'system:admin', ALL_PERMISSIONS),