diff --git a/docker-compose.yml b/docker-compose.yml
index e9203f9d04bc9ab86b1e23561dd7f8835c44df78..10481283cfe5c6ed78eb1f1acbe6716a1e157d62 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 version: "3.9"
 
 services: