---
description: Set a custom build directory to use instead of the default .next directory.
---

# Setting a custom build directory

You can specify a name to use for a custom build directory to use instead of `.next`.

Open `next.config.js` and add the `distDir` config:

```js
module.exports = {
  distDir: 'build',
}
```

Now if you run `next build` Next.js will use `build` instead of the default `.next` folder.

> `distDir` **should not** leave your project directory. For example, `../build` is an **invalid** directory.

## Related

<div class="card">
  <a href="/docs/api-reference/next.config.js/introduction.md">
    <b>Introduction to next.config.js:</b>
    <small>Learn more about the configuration file used by Next.js.</small>
  </a>
</div>