1 files changed, 1 insertions, 1 deletions
diff --git a/tests/storage/test_event_federation.py b/tests/storage/test_event_federation.py
index 30683e7888..69412c5aad 100644
--- a/tests/storage/test_event_federation.py
+++ b/tests/storage/test_event_federation.py
@@ -49,7 +49,7 @@ class EventFederationWorkerStoreTestCase(tests.unittest.TestCase):
                 'INSERT INTO event_reference_hashes '
                 '(event_id, algorithm, hash) '
                 "VALUES (?, 'sha256', ?)"
-            ), (event_id, 'ffff'))
+            ), (event_id, b'ffff'))
 
         for i in range(0, 11):
             yield self.store.runInteraction("insert", insert_event, i)