Mick McCarthy offered his support to Ronald Zubar after he gifted Bolton Wanderers three points on Wednesday.
The Wolverhampton Wanderers defender made a terrible error in the last minute of added time as Daniel Sturridge pounced to give the Trotters their first home win since Boxing Day.
The defeat left Wolves stuck to the Premier League basement as West Ham United leapfrogged them with a 3-1 win over Blackpool.
McCarthy, whose side have now lost three league games on the spin, admitted his side had shot themselves in the foot at the Reebok Stadium.
The Irishman told Sky Sports HD: "I don't know what to say - we had a point in our pocket and we've given it away."
Asked whether he thought his side have the fighting spirit to stay up McCarthy replied: "Course I do, I've said it all the time and we've had that in abundance tonight.
"We've just made a mistake and it has cost us."
McCarthy had sympathy for Zubar, who had his head in his hands at full-time after his blunder.
The Wolves boss added: "I've shaken his hand and told him to keep his chin up. He didn't mean to make the mistake.
"We've been punished but he's one of my players and he works his socks off and I've got to encourage and support him."