He was left with a relatively simple tap-in from a James Hunt cutback after Boston's defence had been pulled out of shape by Andy Sandell.
They reacted by sending on one-time Rovers striker, Paul Tait, who had two half chances of claiming an equaliser but fortune was not with Boston.
They have not won away after going a goal down since they came into the league.
A betting man might have been tempted by a 3-1 scoreline, for that was the outcome of the last three games between these League Two strugglers.
He would have felt badly let down for this time they didn't raise four shots between them.
In the two defences no-one shone more brightly than Byron Anthony, who fully justified his recall to Rovers back four with a confident performance, although his one mistake coming early on so nearly put Anthony Elding in for a Boston goal.
The chance was stumbled away on the 18-yard line and his side had a long wait for another opening.
When it came Anthony beat Elding in the air with a firm header which had the ball flying out for an unproductive corner.
Both sides were finding it hard to bring the ball down and string a few passes together and a run of minor fouls came to a head with a more serious niggle between home striker Richard Walker and the visitors' Mark Albrighton.
Referee Steve Bratt gave them a long lecture but it was Boston who got the free-kick.
Then James Walker, taking off a ball from his namesake, Richard, looked optimistically for a penalty when he went down.
There was a more justified appeal before the break for hands against Boston skipper Paul Ellender. Several agitated Rovers players besieged the ref, but he was having none of it.