diff --git a/archivebox/cli/archivebox_schedule.py b/archivebox/cli/archivebox_schedule.py
index ec5e9146..568b25b9 100644
--- a/archivebox/cli/archivebox_schedule.py
+++ b/archivebox/cli/archivebox_schedule.py
@@ -42,6 +42,7 @@ def main(args: Optional[List[str]]=None, stdin: Optional[IO]=None, pwd: Optional
     parser.add_argument(
         '--depth', # '-d',
         type=int,
+        choices=[0, 1],
         default=0,
         help='Depth to archive to [0] or 1, see "add" command help for more info.',
     )
diff --git a/archivebox/core/settings.py b/archivebox/core/settings.py
index e8ed6b16..bfc0cdc3 100644
--- a/archivebox/core/settings.py
+++ b/archivebox/core/settings.py
@@ -101,7 +101,7 @@ TEMPLATES = [
 ################################################################################
 
 DATABASE_FILE = Path(OUTPUT_DIR) / SQL_INDEX_FILENAME
-DATABASE_NAME = os.environ.get("ARCHIVEBOX_DATABASE_NAME", DATABASE_FILE)
+DATABASE_NAME = os.environ.get("ARCHIVEBOX_DATABASE_NAME", str(DATABASE_FILE))
 
 DATABASES = {
     'default': {