"If Saturday's win at Ipswich Town was a big one then this was massive for us," the Watford boss told the club's official website.
"It is going to go right to the wire and we have to make sure we're disciplined enough to grind out results.
"It was a bit of a fighting start, they've got a terrific defensive record and you can see why because they throw bodies in there.
"The crowd was fantastic, the decision brought everyone together. We've had two very good wins and the crowd is with us again."