Copper-bottomed sources have told Get West London the Scotland striker, who had been linked with a move back to Derby County, will stay with Whites until June.
Fulham have it in appropriate black and white his parent club will not be allowed to snatch him back in January.
Martin was a bystander as his two clubs drew 2-2 at the weekend , but is expected to resume his slot up top when Fulham visit Ipswich on Boxing Day.
Whites will take their time before deciding in May whether to go ahead with a £9 million permanent deal for the man who has hit six in the last 10 games before Staurday's enforced absence.
As a result, rumours surrounding a Fulham replacement move for Birmingham’s Lukas Jutkiewicz were always wide of the mark.
He was never a Whites target, although the Brum striker became the first permanent deal for ex-Chelsea hero Gianfranco Zola when Jutkiewicz signed from parent club Burnley today.