diff --git a/compose.yml b/compose.yml
index b02f2d9..0bf0d39 100644
--- a/compose.yml
+++ b/compose.yml
@@ -1,3 +1,5 @@
+---
+# yaml-language-server: $schema=https://raw.githubusercontent.com/compose-spec/compose-spec/main/schema/compose-spec.json
 services:
   caddy:
     image: caddy:2-alpine