We can't give up - Jos Buttler
At stumps on the third day, England were 203 for six – still 129 runs adrift of making Australia bat again with four wickets in the bank.
Although a defeat seems inevitable from here, Buttler wants England to make the Australians work harder for the remaining wickets.
"We obviously had a really poor day (on Friday) and we needed to come back from that and show some fight,” said Buttler to Sky Sports.
"As you do in an England shirt, you keep fighting and obviously our captain showed that for most of the day."
Known to be an aggressive batsman, Buttler cut down on his natural game to dig in for a gritty unbeaten 33 as he put on a defiant sixth-wicket partnership of 59 with his skipper Alastair Cook.
Cook’s resilience was the highlight of the day for England as the hosts put up a significantly better fight with the bat after a miserable performance in the first innings.
The England captain looked set for his debut Ashes century at home before being consumed by Steve Smith’s part-time leg-breaks just before the close of play.
While expressing disappointment at Cook’s dismissal late in the day, Buttler hopes that he along with the rest of the batsmen can get stuck in on a pitch that still is good for batting.
“It's a shame he (Cook) didn't get through until the end but you've just got to keep fighting and hang in there.
"We've had a fantastic series (but) there's been some strange cricket, some bad days and they really cost you at this level."
After having performed flawlessly in the previous two Tests to reclaim the urn, Buttler admitted that England’s players were disappointed at the way things have panned out at The Oval.
However, the 24-year-old maintained that the feeling of having regained the urn overshadows the setback in the fifth Test.
"After the high of Trent Bridge, and then to go away for 10 days and to be walking around on the back of that was fantastic.
“Everyone's disappointed to come here and play as we have.
"At the end of the day, we have still won the Ashes.
“It's still a great feeling when you hear the crowd sing that the 'urn is coming home'."
Butter has had a very poor series with the bat without a single half-century from six innings so far and the young batsman is aware of the lean patch he is going through.
The 24-year-old confessed that it’s been a difficult phase for him in the ongoing Ashes series but isn’t bogged down by the failures.
"I've had a tough series and it's been tough mentally as much as anything," he said.
“You keep going and keep finding ways of getting out and it's tough but you've got to keep scrapping.
“It's Test cricket for a reason.
“It's hard, it's not meant to be easy."
Despite his dip in form with the bat, Buttler has been exceptional behind the stumps with the big gloves and chose to take that as a positive from the series.
While he is disappointed at not having scored much runs this series, Buttler seemed extremet pleased with the way his keeping has improved.
"(But) I'm really happy with the way my 'keeping's gone.
“This series I feel a progression.
“I'd loved to have contributed more with the bat, but that's my primary role I guess, to keep wicket."
Buttler's previous half-century knock came in the second Test against New Zealand at Leeds. in the previous series.
© Cricket World 2015