how to clear a parameter?

Hi, it is a bit embarrassing but i dont seem to find a way to clear a parameter after i have set it.
for example, is set:

interface ethernet 0 set advertise=“100M-full”
how do i remove the advertise from the configuration?
cheers,
P.

An empty string maybe? i.e.

/interface ethernet 0 set advertise=""

Hi and thanks for replying. That was what i thought, but it froze the interface.