diff --git a/chatmaild/src/chatmaild/tests/test_metadata.py b/chatmaild/src/chatmaild/tests/test_metadata.py
index 051ec747..8b3389bb 100644
--- a/chatmaild/src/chatmaild/tests/test_metadata.py
+++ b/chatmaild/src/chatmaild/tests/test_metadata.py
@@ -107,6 +107,7 @@ def test_notifier_thread_run():
     notifier.thread_run_one(ReqMock())
     url, data, timeout = requests[0]
     assert data == "01234"
+    assert len(notifier.guid2token) == 1
 
 
 def test_notifier_thread_run_gone_removes_token():