Fix fetching public rooms over federation (#12410)

Broke by #12364

1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/federation/transport/client.py b/synapse/federation/transport/client.py

index d4b3cb3e98..66a41e45fc 100644
--- a/synapse/federation/transport/client.py
+++ b/synapse/federation/transport/client.py
@@ -509,7 +509,7 @@ class TransportLayerClient:
             if third_party_instance_id:
                 args["third_party_instance_id"] = (third_party_instance_id,)
             if limit:
-                args["limit"] = [limit]
+                args["limit"] = [str(limit)]
             if since_token:
                 args["since"] = [since_token]