---
title: enablePrerenderSourceMaps
description: Enable source maps for errors during prerendering in next build.
related:
  links:
    - app/guides/memory-usage
    - app/api-reference/config/next-config-js/productionBrowserSourceMaps
---

The `enablePrerenderSourceMaps` option lets Node.js use existing source maps during the prerender phase of `next build`. When source maps are available, error stack traces point to the original source code. It defaults to `true`.

This option does not generate source maps. Webpack does not generate server source maps by default. To generate them when investigating prerender errors, use [`next build --debug-prerender`](/docs/app/api-reference/cli/next#debugging-prerender-errors).

To disable it, set `enablePrerenderSourceMaps` to `false`:

```ts filename="next.config.ts" switcher highlight={4}
import type { NextConfig } from 'next'

const nextConfig: NextConfig = {
  enablePrerenderSourceMaps: false,
}

export default nextConfig
```

```js filename="next.config.js" switcher highlight={3}
/** @type {import('next').NextConfig} */
const nextConfig = {
  enablePrerenderSourceMaps: false,
}

module.exports = nextConfig
```

## Reference

| Option                      | Type      | Default |
| --------------------------- | --------- | ------- |
| `enablePrerenderSourceMaps` | `boolean` | `true`  |

Disabling source maps during prerendering can reduce [build memory usage](/docs/app/guides/memory-usage#disable-source-maps), but makes prerendering errors harder to debug.

## Version History

| Version   | Changes                                                                                                                              |
| --------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| `v16.3.0` | The default changed to `true`, regardless of whether `cacheComponents` is enabled.                                                   |
| `v16.0.0` | `enablePrerenderSourceMaps` moved from `experimental.enablePrerenderSourceMaps` to the top-level `enablePrerenderSourceMaps` option. |