Michigan's elections board has voted not to certify a voter-initiated proposal to raise the state's minimum wage.

The Board of State Canvassers ruled 3-1 Thursday that advocates fell 3,900 valid signatures short of 258,000 needed to put the proposed law before lawmakers or a statewide vote. The board's staff initially determined there were enough signatures but reconsidered after a restaurant group opposing the proposal found duplicates.

To head off the ballot drive, lawmakers in May repealed the minimum wage law that would be amended by the proposal and passed a smaller wage hike. The hourly minimum will rise to $9.25 by 2018 with inflationary increases after.