Tottenham boss Andre Villas-Boas says his side's fans were the difference in the home Capital One Cup victory over Hull, days after questioning the atmosphere at White Hart Lane.
The Portuguese accused his supporters of "negativity" after Sunday's 1-0 league win over the same opponents.
"Great credit to the fans. They were the difference, inspiring us - always cheering, always supporting," he said.
Spurs overcame Hull 8-7 on penalties to make the League Cup last eight.
The hosts fell behind to Paul McShane's header in extra-time, but were loudly supported as they fought back to level through substitute Harry Kane and then win the tie from the spot.
"To see their response after we suffered a setback was very pleasant," added Villas-Boas.
"It was a great atmosphere and it was great for the team to feel that empathy with the supporters."
It was Tottenham's first win on penalties since 1994 - having lost seven shoot-outs thereafter - but Villas-Boas said his squad had actually practised less than when they lost to Basel in the Europa League in April.
"We practised and practised penalties for the Basel game last year, but we didn't this time," he added.
"We haven't practised them for three or four months!"
Their reward is a home draw against London rivals West Ham in the next round which is likely to guarantee another raucous atmosphere.