 Hornuss was signed by manager Stuart Murdoch for English club Milton Keynes Dons in the summer of 2004, and made five appearances for the club in the 2004–05 season.He did not feature in the first team in the 2005–06 season, despite scoring prolifically for the reserve side, and held talks with manager Danny Wilson in October 2005 to clarify his future at the club.In January 2006, he went to a Spanish third division club for a two-game trial, and was released by Milton Keynes Dons in February 2006 so he could find another club.