The Primal Scream star claimed his former bandmate was "dead set" against a reformation of the indie band.
"I spoke to John (Squire, guitarist) and Reni (drummer) about it a few years ago and they said they'd love to do it at some point in time," Mani told the BBC.
"But Ian Brown seems dead set against it."
He added: "If [Brown] changes his mind then we'll probably do it, but then I'll be back to Primal Scream after the one year of doing it."
The Stone Roses released two studio albums, which included the singles 'Waterfall', 'Love Spreads' and 'I Wanna Be Adored'.
They split in 1996 following a string of disappointing live shows and the departure of guitarist John Squire and drummer Reni.