---
title: userImmutable
framework: system
role: symbol
role_heading: Type Property
path: system/fileflags/userimmutable
---

# userImmutable

File may not be changed.

## Declaration

```swift
static var userImmutable: FileFlags { get }
```

## Discussion

Discussion The corresponding C constant is UF_IMMUTABLE. note: This flag may be changed by the file owner or superuser.