Due to technical issues that can't be resolved, fans will be not be able to text for their favourite acts in the final showdown between Amelia Lily, Marcus Collins and Little Mix.
"The X Factor final includes a vote 'freeze' and therefore a shorter vote period," said X Factor reps.
"It is not possible for text voting to be offered, as delays can be experienced within the mobile networks at busy times which could result in text votes not being received within the period the vote is open."
Westlife, Coldplay, Leona Lewis, JLS and One Direction are all confirmed to perform on this weekend's X Factor finale.
The X Factor final kicks off on Saturday (December 10) at 8pm on ITV1. Marcus Collins, Amelia Lily and Little Mix are fighting it out for the chance to land a Syco record contract and a Christmas single.
> 'X Factor': Amelia, Marcus, Little Mix to duet with mentors at final
> Dermot O'Leary gives his verdict on 'X Factor' final three - video
Watch Gary Barlow talking about his X Factor judging experience at the finalists' press conference below: