1 files changed, 1 insertions, 1 deletions
diff --git a/tests/handlers/test_sync.py b/tests/handlers/test_sync.py
index ecc7cc6461..e3f38fbcc5 100644
--- a/tests/handlers/test_sync.py
+++ b/tests/handlers/test_sync.py
@@ -159,7 +159,7 @@ class SyncTestCase(tests.unittest.HomeserverTestCase):
 
         # Blow away caches (supported room versions can only change due to a restart).
         self.store.get_rooms_for_user_with_stream_ordering.invalidate_all()
-        self.store._get_event_cache.clear()
+        self.get_success(self.store._get_event_cache.clear())
         self.store._event_ref.clear()
 
         # The rooms should be excluded from the sync response.