# How to Turn Off Paper's Exploit Fixes

> Paper patches some vanilla bugs players rely on, like TNT duping. Here's how to turn them back on.

Source: https://www.beaconhosting.org/knowledgebase/how-to-disable-exploit-fixes-on-a-minecraft-paper-server
Category: Minecraft
Last updated: 2026-11-05

Paper fixes some vanilla bugs that technical players use on purpose: duplicating TNT, carpet and rails, breaking bedrock, and others. If your players build farms that need them, you can turn the fixes off.

> [!WARNING]
> These settings are called "unsupported" for a reason. They can be used to grief or duplicate items. Only turn on what your players need.

## Turn them off

1. In **Console**, click **Stop**.
2. In **Files**, open `config/paper-global.yml`.
3. Find `unsupported-settings:` and change what you need:

```yaml
unsupported-settings:
  allow-permanent-block-break-exploits: true
  allow-piston-duplication: true
  allow-headless-pistons: true
```

| Setting | Re-enables |
|---|---|
| `allow-piston-duplication` | TNT, carpet and rail duplication |
| `allow-permanent-block-break-exploits` | Breaking bedrock and end portal frames |
| `allow-headless-pistons` | Headless pistons |

4. Save and start the server.

## Other differences from vanilla

`config/paper-world-defaults.yml` has more, for example `fix-items-merging-through-walls` and `disable-unloaded-chunk-enderpearl-exploit`. Check each one's description in Paper's documentation before changing it.

If you need vanilla behaviour everywhere, run **Vanilla** or **Fabric** instead; install them from **Package Manager**.