Abstract: This paper examines the labour supply of permanently disabled male workers from Ontario, Canada. We use unique survey data, collected by the Workers' Compensation Board of Ontario to obtain our estimates. We contrast the labour supply of a group of prime age (aged 25 to 44) disabled male workers with a sample of older (aged 45 to 59) disabled male workers. Our estimates suggest that the wage elasticities for older males tend to be about two times larger than those for younger men, in most cases. The differences in the magnitude of the estimates are also statistically different from each other. We also briefly discuss some of the implications of our estimates.