diff --git a/concerto_2_chrono_format.py b/concerto_2_chrono_format.py
index 0843929..afb4552 100755
--- a/concerto_2_chrono_format.py
+++ b/concerto_2_chrono_format.py
@@ -131,7 +131,7 @@ class ConcertoFormatter(object):
         for nursery, events in groupby(data, lambda x: x['LIB_NOM_LIE']):
             nursery_slug = slugify(nursery)
             agenda = {'slug': nursery_slug, 'label': unicode(nursery, errors='replace'),
-                      'events': [], 'kind': 'events'}
+                      'events': [], 'kind': 'events', 'minimal_booking_delay': 0, 'maximal_booking_delay': 30}
             agenda['permissions'] = {'edit': None, 'view': None}
             for event in events:
                 event_day = datetime.datetime.strptime(event['DAT_JOUR_TMP'], '%Y%m%d')