Noor Husin hit a 79th-minute equaliser as Southend claimed a 1-1 draw at Oldham in the Vanarama National League.
Husin was on hand to tuck in, with the aid of a deflection, after Marcus Dackers had brought down a Jack Bridge cross.
Oldham had been on course for victory after Nathan Sheron – who was denied by a fine save from Collin Andeng Ndi in the first half – had opened the scoring with a powerful strike on the hour.
The closing stages of the game were played in heavy rain and neither side could find a winner.