Michael McKenna's free kick caught out Mark Ridgers
Inverness Caledonian Thistle slipped off the top of the Scottish Championship after a surprise home defeat by Arbroath.
Billy Dodds' side had only lost one of 12 in all competitions but Michael McKenna's second-half strike condemned them to just a second league defeat.
McKenna's direct free kick from wide caught out Mark Ridgers and looped in.
The win moves Dick Campbell's part-timers up to third in the division, just four points from the summit.
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