1 files changed, 2 insertions, 1 deletions
diff --git a/tests/storage/test_appservice.py b/tests/storage/test_appservice.py
index a425e66f37..17fbde284a 100644
--- a/tests/storage/test_appservice.py
+++ b/tests/storage/test_appservice.py
@@ -31,6 +31,7 @@ from synapse.storage.databases.main.appservice import (
 )
 
 from tests import unittest
+from tests.test_utils import make_awaitable
 from tests.utils import setup_test_homeserver
 
 
@@ -357,7 +358,7 @@ class ApplicationServiceTransactionStoreTestCase(unittest.TestCase):
         other_events = [Mock(event_id="e5"), Mock(event_id="e6")]
 
         # we aren't testing store._base stuff here, so mock this out
-        self.store.get_events_as_list = Mock(return_value=defer.succeed(events))
+        self.store.get_events_as_list = Mock(return_value=make_awaitable(events))
 
         yield self._insert_txn(self.as_list[1]["id"], 9, other_events)
         yield self._insert_txn(service.id, 10, events)