Paul Gascoigne has been given a `very severe warning' for his flute-playing mime during the Old Firm New Year clash.
But the Scottish Football Association decided not to impose a financial punishment on the Rangers midfielder as he was heavily fined by his club.
Celtic had written to the SFA complaining about Gascoigne's actions and asked them to investigate.
SFA deputy chief executive Bill Richardson confirmed yesterday: "The executive committee have given the player a very severe warning that this conduct must not occur again.