diff --git a/transport.c b/transport.c
index b51e991e44..24540f642a 100644
--- a/transport.c
+++ b/transport.c
@@ -386,7 +386,8 @@ static int fetch_refs_via_pack(struct transport *transport,
 	args.cloning = transport->cloning;
 	args.update_shallow = data->options.update_shallow;
 	args.from_promisor = data->options.from_promisor;
-	args.filter_options = data->options.filter_options;
+	list_objects_filter_copy(&args.filter_options,
+				 &data->options.filter_options);
 	args.refetch = data->options.refetch;
 	args.stateless_rpc = transport->stateless_rpc;
 	args.server_options = transport->server_options;
@@ -453,6 +454,7 @@ cleanup:
 
 	free_refs(refs_tmp);
 	free_refs(refs);
+	list_objects_filter_release(&args.filter_options);
 	return ret;
 }