We have recently carried out an infrared parallax programme on the UKIRT conducted with a 2562 array. Our observations were made in the near-infrared K-band which is ideal for observing red stars and brown dwarf candidates and has the advantage that differential colour refraction is negligible. We find a parallax of πabs = 156.0 ±13.3 mas for the archetypal late-type M dwarf vB 10 and πabs =11.1 ± 7.5 mas for PC 0025+0447 which we conclude is too distant to be a clear case of a brown dwarf and is probably a late-type M dwarf close to the hydrogen-burning limit. Recent improvements in telescopes and instrumentation working in the infrared should enable accuracies of ~ 1 mas to be obtained for future infrared parallax programmes.