diff --git a/src/Python/flask/web/app.py b/src/Python/flask/web/app.py
index 84b5dc1..bb3d3ab 100644
--- a/src/Python/flask/web/app.py
+++ b/src/Python/flask/web/app.py
@@ -5,6 +5,7 @@ import mysql.connector
 app = Flask(__name__)
 
 # Globale MQTT setup
+kobuki_message = "empty"
 def on_message(client, message):
     global kobuki_message, latest_image
     if message.topic == "kobuki/data":