# tmux.ServerOptionValues.PrefixTimeout

- **Module:** tmux.ServerOptionValues
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-go/blob/5f808882015a975a65acc7f9da5b3ff0d5cbdc91/tmux/option_generated.go#L1921
- **Page:** https://libtmux.org/reference/go/tmux-serveroptionvalues-prefixtimeout/

```
tmux.ServerOptionValues.PrefixTimeout() -> OptionValue[int64]
```

PrefixTimeout returns materialized "prefix-timeout" as [OptionValue] with value type OptionValue[int64] from server option values; it does not query tmux. Available as NUMBER since tmux 3.5; set it with [Server.SetPrefixTimeout].