The score was 1-1 when Jones inexplicably threw the ball straight at Charlton striker Bradley Wright-Phillips, who smashed it straight back past him and into the net.
Nugent said: "Obviously Jamie is as disappointed as the rest of the lads are.
"He has put his hands up and said it was a bad mistake, but it is just one of those things.
"He`s had a very good season for us and unfortunately with keepers when they do make a mistake, it tends to cost.
"But he is a young lad, a good keeper, and I'm sure he will get over it."
Source: PA
Source: PA