---
title: "sealed.internalEnum"
shortDescription: "Tag @phpstan-sealed references an internal enum from another package."
ignorable: true
---

## Code example

```php
<?php declare(strict_types = 1); // lint >= 8.1

namespace Vendor {
	/** @internal */
	enum Status {
		case Active;
		case Inactive;
	}
}

namespace App {
	/**
	 * @phpstan-sealed \Vendor\Status
	 */
	interface StatusProvider
	{
	}
}
```

## Why is it reported?

The `@phpstan-sealed` PHPDoc tag references an enum that is marked as `@internal` in another package. Internal symbols are not meant to be used outside of their own package, and referencing them in a `@phpstan-sealed` tag creates a dependency on an implementation detail that could change without notice.

## How to fix it

Reference only public (non-internal) enums in `@phpstan-sealed` tags, or create your own enum that mirrors the needed values.

```diff-php
 <?php declare(strict_types = 1);

 namespace App;

-use Internal\Status;
+use App\Enums\Status;

 /**
  * @phpstan-sealed Status
  */
 interface StatusProvider
 {
 }
```
