1 files changed, 5 insertions, 3 deletions
diff --git a/synapse/api/room_versions.py b/synapse/api/room_versions.py
index 7ff8ad2d55..fbc1d58ecb 100644
--- a/synapse/api/room_versions.py
+++ b/synapse/api/room_versions.py
@@ -370,9 +370,11 @@ class RoomVersionCapability:
 
 MSC3244_CAPABILITIES = {
     cap.identifier: {
-        "preferred": cap.preferred_version.identifier
-        if cap.preferred_version is not None
-        else None,
+        "preferred": (
+            cap.preferred_version.identifier
+            if cap.preferred_version is not None
+            else None
+        ),
         "support": [
             v.identifier
             for v in KNOWN_ROOM_VERSIONS.values()