1 files changed, 3 insertions, 3 deletions
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index 17dd4af13e..b1640e3246 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -1312,9 +1312,9 @@ class FederationHandler:
         if state_key is not None:
             # the event was not rejected (get_event raises a NotFoundError for rejected
             # events) so the state at the event should include the event itself.
-            assert (
-                state_map.get((event.type, state_key)) == event.event_id
-            ), "State at event did not include event itself"
+            assert state_map.get((event.type, state_key)) == event.event_id, (
+                "State at event did not include event itself"
+            )
 
             # ... but we need the state *before* that event
             if "replaces_state" in event.unsigned: