diff --git a/biscuit/apps/chronos/menus.py b/biscuit/apps/chronos/menus.py
index a2709a213571c5f1d4f7de894875485ca16421c6..109bbb85d9fe5d431d5ca2ebf40d6a85dcacae47 100644
--- a/biscuit/apps/chronos/menus.py
+++ b/biscuit/apps/chronos/menus.py
@@ -6,7 +6,7 @@ MENUS = {
             'name': _('Timetables'),
             'url': '#',
             'root': True,
-            'validators': ['menu_generator.validators.is_authenticated'],
+            'validators': ['menu_generator.validators.is_authenticated', 'biscuit.core.util.core_helpers.has_person'],
             'submenu': [
                 {
                     'name': _('Timetable'),