diff --git a/src/restic/backup.py b/src/restic/backup.py
index 47675f8..f7effe7 100755
--- a/src/restic/backup.py
+++ b/src/restic/backup.py
@@ -56,7 +56,7 @@ def run(backup_dir: Path, loki_url: str = None, tag: str = 'python-script'):
 )
 @click.option('--loki-url', type=str, help='Loki URL for logging', envvar='LOKI_URL')
 @click.option('--tag', type=str, help='Tag to use in restic')
-def main(backup_dir: Path, loki_url: str = None, tag: str = None):
+def main(backup_dir: Path, loki_url: str = None, tag: str = 'python-script'):
     console = Console()
 
     logging.basicConfig(