diff --git a/inventories/script_migrations/large_hostvars.py b/inventories/script_migrations/large_hostvars.py
index 9cdd3b3c9b..3cc25256d8 100755
--- a/inventories/script_migrations/large_hostvars.py
+++ b/inventories/script_migrations/large_hostvars.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 import json
 import random
 import string