Smith, 26, was part of the 70-nil rout Wigan enjoyed over Super League strugglers London Broncos in Saturday’s first semi-final, but the Cherry and White’s form in the league has recently been a cause of concern.
“It was great to get to Wembley but our concentration now has to be back on the league,” Smith told the Wigan Evening Post.
The Warriors have lost three of four in league action, including a 22-16 loss to fierce rivals St Helens at Langtree Park.
The loss of form in the league has allowed Huddersfield to move top and now Smith wants to rectify that, starting with success over Hull KR on Friday.
“It’s Hull KR on Friday – we’re in second at the minute and we want to be back on top and get that League Leaders’ Shield, so concentration is back on the league and hopefully we’ll put in a good performance.”
Former St Helens man Smith joined Wigan from Salford last season, and he is honoured to be playing in such important games for his still relatively new club.
He said, “I came to Wigan because of how big the club is and how much history it has got. It is a great honour to play for Wigan.
“I came here to play in big games and Wembley is going to be great.
“Hopefully we can concentrate on the league for now, but when Wembley comes it will be a great occasion for everyone.”