diff --git a/swh/storage/archiver/tasks.py b/swh/storage/archiver/tasks.py
index 1086f396..78549fc5 100644
--- a/swh/storage/archiver/tasks.py
+++ b/swh/storage/archiver/tasks.py
@@ -1,26 +1,28 @@
-# Copyright (C) 2015  The Software Heritage developers
+# Copyright (C) 2015-2016  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 from swh.scheduler.task import Task
 from .worker import ArchiverWithRetentionPolicyWorker
 from .worker import ArchiverToBackendWorker
 
 
 class SWHArchiverWithRetentionPolicyTask(Task):
-    """ Main task that archive a batch of content.
+    """Main task that archive a batch of content.
+
     """
     task_queue = 'swh_storage_archive_worker'
 
     def run(self, *args, **kwargs):
         ArchiverWithRetentionPolicyWorker(*args, **kwargs).run()
 
 
 class SWHArchiverToBackendTask(Task):
-    """ Main task that archive a batch of content in the cloud.
+    """Main task that archive a batch of content in the cloud.
+
     """
     task_queue = 'swh_storage_archive_worker_to_backend'
 
     def run(self, *args, **kwargs):
         ArchiverToBackendWorker(*args, **kwargs).run()