The Whites were awarded two spot kicks during the match, but Jackett believes that his team should have had one of their own when Sam Byram appeared to handle in the area.
"My first impressions are that we couldn't complain about either of Leeds' penalties but I felt we had a clear-cut penalty when Danny Shittu headed the ball down, Sam Byram had his hand by the side of his body and clearly handled it as the ball was going through to my centre-forward," Sky Sports News quotes him as saying.
"I thought the referee got that call wrong. David Forde made a good save from the first penalty and he is in top form at present.
Stephen Warnock slotted home the decisive penalty to secure the points for Leeds.