diff --git a/bundles/infobeamer-monitor/files/monitor.py b/bundles/infobeamer-monitor/files/monitor.py
index e5755c2..01ffe29 100644
--- a/bundles/infobeamer-monitor/files/monitor.py
+++ b/bundles/infobeamer-monitor/files/monitor.py
@@ -40,7 +40,10 @@ def mqtt_out(message, level="INFO", device=None):
     key = "infobeamer"
     if device:
         key += f"/{device['id']}"
-        message = f"[{device['description']}] {message}"
+        if device["description"]:
+            message = f"[{device['description']}] {message}"
+        else:
+            message = f"[{device['serial']}] {message}"
 
     client.publish(
         CONFIG["mqtt"]["topic"],