Doncaster born Butler has close to 500 senior appearances to his name and signed for the Rovers in January 2015 after making his loan move from Sheffield United permanent.
A former Scunthorpe United academy product the 31 year old made the grade at Glanford Park and would go on to make over 150 appearances for the Iron.
From there, the part time referee moved to Huddersfield Town, Walsall and the Blades - but the move never flourished and Butler came to his natural home.
His first goal in the red and white hoops came on Boxing Day 2015 against Coventry City at Keepmoat Stadium in a 2-0 win.
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