Alloa stormed to the top of the league as Steven May's wonder goal edged out promotion rivals Annan Athletic.
The striker settled the fixture at Recreation Park with a stunning strike from all of 35 yards after receving Ryan McCord's pass on the half-hour mark.
The Galabankies looked to reply through Aaron Muirhead but his stinging shot was tipped around the post by Scott Bain, before Mark Docherty saw his effort beaten away by goalkeeper Alex Mitchell.
Annan's defeat keeps them in third place, five points behind the leaders.
Alloa: Bain, McCullagh, Harding, James Doyle, McHattie, Docherty, Ryan McCord, Young, Cawley, May, Holmes. Subs Not Used: McDowall, One, Masterton, Winters, Campbell.
Booked: Young, Ryan McCord, McHattie.
Annan Athletic: Alex Mitchell, Muirhead, Gibson, Peter Watson, McGowan, Sloan (Steele 88), Jardine (McKenna 66), Danny Mitchell, Cox, Winter (Bell 90), O'Connor.
Subs Not Used: Summersgill, McKechnie. Booked: Alex Mitchell, McKenna.
Ref: Greg Aitken