The ICC has confirmed that English umpire Nigel Llong was wrong to not dismiss Nathan Lyon in the first innings of Australia's victory in the first day/night Test over New Zealand.
New Zealand called for a review after Lyon was caught in the slips off Mitchell Santner's bowling in the first innings, with the tail-ender on nought and the hosts floundering on 118-8 at the time.
Snicko proved inconclusive, although the hotspot technology showed a clear mark on the ball after it had passed Lyon's bat, which was not caught on camera due to the batsman's long stride.
Llong claimed he could not overturn the on-field decision due to this, despite Lyon walking to the boundary edge.
A statement on Twitter read: "ICC has replied to correspondence from NZC relating to the Nathan Lyon DRS review in the 3rd Test.
"ICC has reviewed the decision and acknowledged that it was incorrect.
"ICC confirms the umpire followed the correct protocol, but made an incorrect judgment."
New Zealand cricket were incensed by the decision, which allowed Lyon to add a further 34 runs to his personal tally as Australia scrambled to a first-innings lead of 22.
A thrilling finish to the Test saw Australia's tail scrape home by three wickets after Trent Boult's five-for with the pink ball had threatened to win it for the Black Caps.