diff --git a/doorbell/klingel_sender_nano_serial/doorbell.py b/doorbell/klingel_sender_nano_serial/doorbell.py
index f2d8b12..b6e1513 100644
--- a/doorbell/klingel_sender_nano_serial/doorbell.py
+++ b/doorbell/klingel_sender_nano_serial/doorbell.py
@@ -48,7 +48,7 @@ while True:
                         "Content-Type": "application/json"
                     }
                     data = json.dumps({'payload': 'RING', 'topic': 'lewe/doorbell', 'retain': 'False'}).encode('utf8')
-                    request = urllib.request.Request("https://www.nodebucket.de:8123/api/services/mqtt/publish", data, headers)
+                    request = urllib.request.Request("https://ha.nodebucket.de/api/services/mqtt/publish", data, headers)
                     response = urllib.request.urlopen(request)
             except Exception:
                 logger.error("Could not ring doorbell")