Setting web server on a port different than 80

there is a way to have something like http://yun.local:81/ instead of http://yun.local/

opkg update
opkg install nano

nano /etc/config/uhttpd

#list listen_http        0.0.0.0:80
list listen_http        0.0.0.0:81

/etc/init.d/uhttpd restart

http://arduino.local:81/

thanks