diff --git a/packages/astro/src/@types/astro.ts b/packages/astro/src/@types/astro.ts
index 45963dbcf0..137fb3b850 100644
--- a/packages/astro/src/@types/astro.ts
+++ b/packages/astro/src/@types/astro.ts
@@ -277,7 +277,7 @@ export interface AstroUserConfig {
 	 * @type {string}
 	 * @default `"."` (current working directory)
 	 * @summary Set the project root. The project root is the directory where your Astro project (and all `src`, `public` and `package.json` files) live.
-	 * @description  You should only provide this option if you run the `astro` CLI commands in a directory other than the project root directory. Usually, this option is provided via the CLI instead of the `astro.config.js` file, since Astro needs to know your project root before it can locate your config file.
+	 * @description  You should only provide this option if you run the `astro` CLI commands in a directory other than the project root directory. Usually, this option is provided via the CLI instead of the [Astro config file](https://docs.astro.build/en/guides/configuring-astro/#supported-config-file-types), since Astro needs to know your project root before it can locate your config file.
 	 *
 	 * If you provide a relative path (ex: `--root: './my-project'`) Astro will resolve it against your current working directory.
 	 *