Donnie Benham, the son of former Winnipeg city councillor Donald Benham, will carry the Green banner in the Fort Whyte constituency.
Benham says if elected, he would put forward a private member's bill that would require any politician who quits between elections to repay their pensions.
He says politicians who quit mid-term cost taxpayers a lot of money by forcing byelections.
The Fort Whyte byelection is set for Sept. 4 to replace Hugh McFadyen (mihk-FAH'-den), the former Progressive Conservative leader who stepped down after failing to improve Tory fortunes in last year's election.
Fort Whyte is considered a safe Tory seat and the party is running its new leader, Brian Pallister, against the NDP's Brandy Schmidt and the Liberals' Bob Axworthy.