diff --git a/configuration.md b/configuration.md
index 63f4687892..a731257ef3 100644
--- a/configuration.md
+++ b/configuration.md
@@ -42,6 +42,13 @@ $.preferLocal = true
 await $`c8 npm test`
 ```
 
+You can also specify a directory to search for local binaries:
+
+```js
+$.preferLocal = '/some/to/bin'
+$.preferLocal = ['/path/to/bin', '/another/path/bin']
+```
+
 ## $.quote
 
 Specifies a function for escaping special characters during