Fulham needed extra-time to see off FA Cup opponents QPR 2-0 on Saturday.
Goals from substitutes Bobby Decordova-Reid and Neeskens Kebano against QPR sent a much-changed Fulham into the fourth round of the FA Cup.
Two fine Marek Rodak saves for Fulham and Lyndon Dykes' lack of composure for QPR sent the tie to extra time.
Decordova-Reid's low shot and Kebano's powerful strike decided the derby.
“It was a tough game," said Fulham boss Scott Parker. “The same as when we played them last year so we knew that.
“I think over the 90 minutes we both punched away and both teams had some good chances.
“After the couple of weeks we've had, to go to extra time and look as strong as we did was pleasing.
“Momentum sticks with us, it's a win. Unbeaten now in five, a clean sheet as well so a lot of positives out there today."
He continued: “Of course, three players out there that started the game were returning.
“One of them hasn't played for near on a year- his first game back, in Terence Kongolo. Josh Onomah hasn't played for some time and the same with Kenny (Tete) as well.
“We had to move it around a little bit in terms of the squad because that's the position we're in at the moment."
