Fix flake8 (#4519)

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/storage/test_background_update.py b/tests/storage/test_background_update.py

index 81403727c5..5568a607c7 100644
--- a/tests/storage/test_background_update.py
+++ b/tests/storage/test_background_update.py
@@ -11,7 +11,7 @@ class BackgroundUpdateTestCase(unittest.TestCase):
     def setUp(self):
         hs = yield setup_test_homeserver(
             self.addCleanup
-        )  # type: synapse.server.HomeServer
+        )
         self.store = hs.get_datastore()
         self.clock = hs.get_clock()