diff --git a/app/routes/api.py b/app/routes/api.py
index 9e0375b..bfd671b 100644
--- a/app/routes/api.py
+++ b/app/routes/api.py
@@ -217,7 +217,7 @@ def bookmark_thread(thread_id):
 @bp.get('/current-user')
 def get_current_user_info():
     if not is_logged_in():
-        return {'user': null}
+        return {'user': None}
 
     user = get_active_user()
     return {