diff --git a/astro.config.mjs b/astro.config.mjs
index 100cdd9..1da8c51 100644
--- a/astro.config.mjs
+++ b/astro.config.mjs
@@ -1,3 +1,4 @@
+// @ts-check
 import { defineConfig } from 'astro/config'
 import serviceWorker from '@ayco/astro-sw'
 import sitemap from '@astrojs/sitemap'