diff --git a/src/restic_compose_backup/restic.py b/src/restic_compose_backup/restic.py
index fcc5c6b..6bdee08 100644
--- a/src/restic_compose_backup/restic.py
+++ b/src/restic_compose_backup/restic.py
@@ -83,7 +83,7 @@ def forget(repository: str, keeplast: str, hourly: str, daily: str, weekly: str,
         '-keep-last',
         keeplast,
         '--keep-hourly',
-        hourly
+        hourly,
         '--keep-daily',
         daily,
         '--keep-weekly',
@@ -93,7 +93,7 @@ def forget(repository: str, keeplast: str, hourly: str, daily: str, weekly: str,
         '--keep-yearly',
         yearly,
         '--keep-tag',
-        tags
+        tags,
     ]))