@@ -90,6 +90,7 @@ char tty_getchar(tty_t *tty) {

 int tty_input_ready(tty_t *tty) {

 	fd_set readfs;

 	struct timeval tv = {0, 0};

+	FD_ZERO(&readfs);

 	FD_SET(tty->fdin, &readfs);

 	select(tty->fdin + 1, &readfs, NULL, NULL, &tv);

 	return FD_ISSET(tty->fdin, &readfs);