diff --git a/docs/advanced-usage.md b/docs/advanced-usage.md
index 856c5efa..a705cdec 100644
--- a/docs/advanced-usage.md
+++ b/docs/advanced-usage.md
@@ -71,7 +71,7 @@ steps:
 - run: npm test
 ```
 
-When using the `package.json` input, the action will look for `volta.node` first. If `volta.node` isn't defined, then it will look for `engines.node`.
+When using the `package.json` input, the action will look for `volta.node` first. If `volta.node` isn't defined, then it will look for `engines.node` (as [defined here in the npm docs](https://docs.npmjs.com/cli/v10/configuring-npm/package-json/#engines)).
 
 ```json
 {