diff --git a/config.ini b/config.ini
index ee0abe2..224b7e6 100755
--- a/config.ini
+++ b/config.ini
@@ -3,13 +3,11 @@
 [main]
 lang = fr
 db_sqlite_file = db.sqlite
-db_backup_json_file = db.json
 newcomment_polling = 60
 
 [site]
 name = "My blog"
 url = http://blog.mydomain.com
-token = 
 admin_email = admin@mydomain.com
 
 [http]
diff --git a/run.py b/run.py
index 3496f48..854ea82 100644
--- a/run.py
+++ b/run.py
@@ -5,6 +5,7 @@ import sys
 import os
 import argparse
 import logging
+import hashlib
 
 from stacosys.conf.config import Config, ConfigParameter
 from stacosys.db import database
@@ -91,6 +92,7 @@ def stacosys_server(config_pathname):
     app.logger.addHandler(mail_handler)
 
     # configure scheduler
+    conf.set(ConfigParameter.SITE_TOKEN, hashlib.sha1(conf.get(ConfigParameter.SITE_NAME)).hexdigest())
     scheduler.configure(
         conf.get_int(ConfigParameter.IMAP_POLLING),
         conf.get_int(ConfigParameter.COMMENT_POLLING),