# Debug Compilation Mode

*Leaving debug compilation mode enabled can severely slow down a website and take up more memory on the server.*

## How to fix this health check

This health check can be fixed by providing configuration on the following path: `Umbraco:CMS:Hosting:Debug`.

This configuration can be setup in a configuration source of your choice. This guide shows how to set it up in one of the JSON file sources.

### Updating the JSON configuration

The following JSON needs to be merged into one of your JSON sources. By default the following JSON sources are used: `appSettings.json` and `appSettings.<environment>.json`, e.g. `appSettings.Development.json` or `appSettings.Production.json`.

```json
{
  "Umbraco": {
    "CMS": {
      "Hosting": {
        "Debug": <true|false>
      }
    }
  }
}
```

One example that can be used for production:

```json
{
  "Umbraco": {
    "CMS": {
      "Hosting": {
        "Debug": false
      }
    }
  }
}
```