diff --git a/handler_data/ta_handler.py b/handler_data/ta_handler.py
index 946464d..a273451 100644
--- a/handler_data/ta_handler.py
+++ b/handler_data/ta_handler.py
@@ -22,7 +22,7 @@ class TaHandler:
         if msg['#type'] in ('track', 'track_update'):
             msg['properties'].update(data)
             if 'event_id' in msg['properties']:
-                msg['#event_id'] = msg['properties']['event_id']
+                msg['#event_id'] = msg['properties'].pop('event_id')
 
         elif msg['#type'] == 'user':
             msg['#type'] = 'user_' + msg['#event_name']