diff --git a/MQTT.py b/MQTT.py
index b49b19b..5c3660c 100755
--- a/MQTT.py
+++ b/MQTT.py
@@ -20,6 +20,7 @@ def valid(msg, client):
     if 'device_name' not in origin_data:
         client.publish('error', payload='device_name must be supplied', qos=0)
         return False
+    client.publish('error', payload=device_name, qos=0)
     if device_name != origin_data['device_name']:
         return False
     return True