Benitez said: "We have a problem away from home, we don't have consistency. We have played some very good games at home but also some bad ones away and we need to find the same level.
"If we find that consistency I am sure we can reduce the gap at the top.
"The most important thing though is that we concentrate on each game, not the league table. We know Charlton are on the same points as us and it will be a difficult game, but I don't like to look at the league table unless my team is first with a lot of points."