diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index 5a38f3e9a8..44ddb5504c 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -1895,9 +1895,9 @@ class SyncHandler(object):
                 if notifs is not None:
                     unread_notifications["notification_count"] = notifs["notify_count"]
                     unread_notifications["highlight_count"] = notifs["highlight_count"]
-                    unread_notifications["org.matrix.msc2625.unread_count"] = (
-                        notifs["unread_count"]
-                    )
+                    unread_notifications["org.matrix.msc2625.unread_count"] = notifs[
+                        "unread_count",
+                    ]
 
                 sync_result_builder.joined.append(room_sync)