diff --git a/archivebox/config/__init__.py b/archivebox/config/__init__.py
index 6a324021..7cbc6d40 100644
--- a/archivebox/config/__init__.py
+++ b/archivebox/config/__init__.py
@@ -870,4 +870,4 @@ def setup_django(out_dir: str=None, check_db=False, config: ConfigDict=CONFIG) -
     except KeyboardInterrupt:
         raise SystemExit(2)
 
-os.umask(0o777 - int(OUTPUT_PERMISSIONS, base=8)) # noqa: F821
+os.umask(0o777 - int(OUTPUT_PERMISSIONS, base=8))  # noqa: F821
diff --git a/archivebox/core/admin.py b/archivebox/core/admin.py
index 6a9fcdae..ec8a3d54 100644
--- a/archivebox/core/admin.py
+++ b/archivebox/core/admin.py
@@ -149,3 +149,4 @@ class ArchiveBoxAdmin(admin.AdminSite):
 admin.site = ArchiveBoxAdmin()
 admin.site.register(get_user_model())
 admin.site.register(Snapshot, SnapshotAdmin)
+admin.site.disable_action('delete_selected')