It was a moment of controversy that left those inside Fratton Park of a Pompey persuasion reeling.
Nobody was convinced when Nesta Guinness-Walker threw himself to the turf after challenging for the ball with Ronan Curtis.
Well, except for referee Thomas Bramall, who pointed to the spot and allowed Ollie Palmer to give AFC Wimbledon the lead.
Thankfully, Michael Jacobs equalised after the break and Marcus Harness then grabbed a late winner.
Danny Cowley certainly did not agree with the official’s decision, but preferred to discuss the positives after a fourth successive victory.
The Blues boss said: “A lot went against us in the first half and we could have easily become victims, but we didn’t do that.
“I was determined – regardless of the result – not to talk about refereeing decisions, but it’s easier to do that when you win!
"I was determined – regardless of the result – not to talk about refereeing decisions, but it’s easier to do that when you win!"
“I’d rather put my focus onto our players and supporters, who were magnificent and definitely played their part.
“When I closed my eyes and dreamt about becoming Pompey manager, it was for moments like what happened at the end.
“We were actually playing well before the penalty decision and created a lot of chances, needing to be more ruthless.
“But we lost our discipline for a bit after that and have to do better, then regained our composure going into the break.
“The messaging was clear and we either put our energy into being disappointed and moaning about decisions or you direct it in a positive way.
“We chose the latter and although it wasn’t perfect, we fought hard and knew that if we could find one goal, we’d likely find a second.
“AFC Wimbledon are an energetic, fizzy side, who play with a real intensity and don’t give you a moment to relax.
“It was great for Michael to get the equaliser – and I’m delighted for him – before a fantastic late finish from Marcus.”