Labor is fighting to prevent right-wing extremist party Australia First Party from being able to use the Eureka flag as its logo on the ballot paper, highlighting flaws with the recent changes to election legislation.

As part of the changes to Senate voting made by the Coalition government before the July 2 election, parties can now register logos for their parties to be included on the ballot paper. The only restrictions are that the logo can't be obscene, can't be anyone else's logo, and can't closely resemble the logo of any other person.