diff --git a/alignak_backend/app.py b/alignak_backend/app.py
index a41f2431..914d505f 100755
--- a/alignak_backend/app.py
+++ b/alignak_backend/app.py
@@ -1729,7 +1729,7 @@ def cron_timeseries():
 
 
 @app.route("/cron_grafana")
-def cron_grafana(engine='jsonify'):
+def cron_grafana(engine='jsonify'):  # pylint: disable=too-many-locals
     """
     Cron used to add / update grafana dashboards