diff --git a/docker/conf/loader-deposit.yml b/docker/conf/loader-deposit.yml
index 37a75aa..8c72ba6 100644
--- a/docker/conf/loader-deposit.yml
+++ b/docker/conf/loader-deposit.yml
@@ -1,26 +1,27 @@
+default_filename: archive.tar
 storage:
   cls: pipeline
   steps:
     - cls: buffer
       min_batch_size:
         content: 10000
         content_bytes: 104857600
         directory: 1000
         revision: 1000
     - cls: filter
     - cls: remote
       url: http://swh-storage:5002/
 
 celery:
   task_broker: amqp://guest:guest@amqp//
   task_queues:
     - swh.loader.package.deposit.tasks.LoadDeposit
     - swh.deposit.loader.tasks.ChecksDepositTsk
 
 deposit:
   url: http://swh-deposit:5006/1/private
   auth:
     username: test
     password: test
 
 url: 'http://swh-deposit:5006'