diff --git a/rowers/polarstuff.py b/rowers/polarstuff.py
index c092e54b..5ee076f6 100644
--- a/rowers/polarstuff.py
+++ b/rowers/polarstuff.py
@@ -23,6 +23,7 @@ import os,sys
 import gzip
 import base64
 import yaml
+
 from uuid import uuid4
 from requests import ConnectionError
 from json.decoder import JSONDecodeError
@@ -363,7 +364,7 @@ def register_user(user, token):
     }
 
     params = {
-        'member-id': str(user.id)
+        'member-id': uuid4().hex
     }
 
     url = baseurl+'/users'