# libtmux.control:connection-closed

- **Package:** libtmux/control
- **Language:** Common Lisp
- **Kind:** exception
- **Source:** https://github.com/libtmux/libtmux-lisp/blob/c2e5fc4ed3befda21f45dfa5d5868c38fd138311/src/control.lisp#L60
- **Public owner:** libtmux.control
- **Bases:** [`libtmux.control:connection-error`](/en/lisp/latest/reference/libtmux-control-connection-error/), [`libtmux:client-closed`](/en/lisp/latest/reference/libtmux-client-closed/)
- **Page:** https://libtmux.org/en/lisp/latest/reference/libtmux-control-connection-closed/

Submission attempted on a closing or closed connection.

See also: `libtmux.control:connection-state`, `libtmux.control:submit-command`.