diff --git a/src/backend/core/authentication/livekit.py b/src/backend/core/authentication/livekit.py
index b236dc54..35b336a5 100644
--- a/src/backend/core/authentication/livekit.py
+++ b/src/backend/core/authentication/livekit.py
@@ -30,7 +30,7 @@ class LiveKitTokenAuthentication(authentication.BaseAuthentication):
                 raise exceptions.AuthenticationFailed("Token missing user identity")
 
             try:
-                user = UserModel.objects.get(id=user_id)
+                user = UserModel.objects.get(sub=user_id)
             except UserModel.DoesNotExist:
                 user = AnonymousUser()