Watford boss Walter Mazzarri wants to avoid a repeat of the loss at Burnley when his side play at Middlesbrough on Sunday.
The Hornets were beaten 2-0 at Turf Moor in their most recent away fixture in the Premier League and responded by twice fighting back to draw 2-2 at home to Bournemouth prior to the international break.
"It will be a very hard game," Mazzarri said.
"We have to be focused, to play our game, to play very well defensively. We have to keep in mind the game against Burnley so we know what mistakes not to repeat."
Watford captain Troy Deeney was scathing of his team at Burnley, saying the Hornets had been "bullied" by the Clarets, who wanted victory more.
Mazzarri added: "Troy said what we all thought in the dressing room. Even me. I was the first one to go out and say the same thing.
"We admitted that we played very bad. We have been working on it for it not to happen again. I promised myself that Burnley would not happen again.
"We showed against Bournemouth a a big reaction."
Watford last kept a clean sheet in April in a win at West Brom, while they have conceded 13 Premier League goals this season, while scoring 12. The Burnley loss was the first time Watford had failed to score since the defeat at Liverpool in early May.
Mazzarri added: "There's something we have to improve. We always created many opportunities. We need to improve defensively.
"I don't want to justify anything, but we have been missing players like (Miguel) Britos and (Craig) Cathcart.
"Even the game against Bournemouth, we allowed too many chances. This is something we're working on.
"The goals we have given to the opposition in the past weeks have been many because we were not concentrating on that particular moment.
"This is something we have to focus on in the upcoming games."