ST MIRREN chairman Stewart Gilmour told Rangers manager Ally McCoist he would vote against the Ibrox club joining the SPL at a secret meeting.
Gilmour met with Gers boss McCoist, chief executive Charles Green and other officials at a city centre hotel to inform them of the Paisley club's plans face-to-face.
The decision to put sporting integrity before financial gain was taken before top flight rivals Aberdeen, Inverness Caley Thistle and St Johnstone made their intentions public.
Gilmour confirmed: "I made it perfectly clear that our directors' view was that our club would not be voting for a newco entry into the SPL.
"This meeting was held in confidential circumstances to allow both parties to enable the other to see their respective positions."
Meanwhile, Hamilton Accies have become the fourth Irn-Bru First Division club to declare their opposition to Rangers being parachuted into Scotland's second tier next season.
Chairman Les Gray has called for the Gers to be forced to apply for a place in the Third Division.