Cursor resets in linux console

Hi.

I'm using a plain linux console, usually with screen, and I have set a cursor
that's easier to read using a control code:

printf '\e[?3c'

This is a standard linux console code.

However as soon as I start moc my cursor resets to the standard thin underscore
that's pretty unreadable.

Any way around this? I looked at the cursor and TERM options, but nothing
helped.

Thanks.