diff --git a/mautrix_telegram/user.py b/mautrix_telegram/user.py
index 86e2f7d4..7430fb16 100644
--- a/mautrix_telegram/user.py
+++ b/mautrix_telegram/user.py
@@ -398,12 +398,11 @@ class User(AbstractUser, BaseUser):
             self.tgid = None
             await self.save()
         ok = await self.client.log_out()
-        if not ok:
-            return False
+        self.client.session.delete()
         self.delete()
         await self.stop()
         self._track_metric(METRIC_LOGGED_IN, False)
-        return True
+        return ok
 
     def _search_local(self, query: str, max_results: int = 5, min_similarity: int = 45
                       ) -> List[SearchResult]:
diff --git a/mautrix_telegram/web/provisioning/__init__.py b/mautrix_telegram/web/provisioning/__init__.py
index a7308761..e78b2342 100644
--- a/mautrix_telegram/web/provisioning/__init__.py
+++ b/mautrix_telegram/web/provisioning/__init__.py
@@ -465,7 +465,7 @@ class ProvisioningAPI(AuthAPI):
                                                 Optional[web.Response]]):
         err = self.check_authorization(request)
         if err is not None:
-            return err
+            return None, None, err
 
         data = None
         if want_data and (request.method == "POST" or request.method == "PUT"):