# libtmux::Server::unset_environment

- **Module:** libtmux::Server
- **Package:** libtmux-cxx
- **Language:** C++
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-cxx/blob/393d4b0ad666f18a6581f1eb281741a75a7503f0/include/libtmux/server.hpp#L462
- **Page:** https://libtmux.org/en/cxx/latest/reference/libtmux-server-unset_environment/

```
libtmux::Server::unset_environment(name: std::string_view) -> expected< void, CommandFailure >
```

Forget the name, so a new process inherits whatever the tmux server itself has.

This is tmux's `-u`.