diff --git a/nkdsu/apps/vote/management/commands/update_mastodon_instances.py b/nkdsu/apps/vote/management/commands/update_mastodon_instances.py
index b38c5a6b..2cf50756 100644
--- a/nkdsu/apps/vote/management/commands/update_mastodon_instances.py
+++ b/nkdsu/apps/vote/management/commands/update_mastodon_instances.py
@@ -21,7 +21,8 @@ def write_instances(self, instances: list[str]) -> None:
 
         with open(module_path, 'wt') as f:
             f.write(
-                "# this file is populated by running `python manage.py update_mastodon_instances`\n\n"
+                "# this file is populated by running `python manage.py update_mastodon_instances`\n"
+                "# do not edit it by hand\n\n"
             )
             f.write(f"MASTODON_INSTANCES: set[str] = {{ {', '.join((repr(i) for i in instances))} }}")