---
title: bundleIdentifier
framework: System Extensions
role: symbol
role_heading: Instance Property
platforms: [macOS 15.1+]
path: systemextensions/ossystemextensioninfo/bundleidentifier
---

# bundleIdentifier

## Declaration

```swift
var bundleIdentifier: String { get }
```

## Discussion

Discussion The bundle identifier of the extension (CFBundleIdentifier)