diff --git a/api-customer/src/controllers/telemetryController.py b/api-customer/src/controllers/telemetryController.py
index dfe63bba..416d6625 100644
--- a/api-customer/src/controllers/telemetryController.py
+++ b/api-customer/src/controllers/telemetryController.py
@@ -12,6 +12,7 @@ class TelemetryController:
 
     def __init__(self, app, database_service : MongoService):
         self._register_routes(app)
+        self._database_service = database_service
 
     def _register_routes(self, app):
         app.add_url_rule("/telemetry/history/sound", view_func=self.sound, methods=['GET'])