Horace recorded this song twice, this version cut for producer Phil Pratt's Sunshot label, circa 1974 by the sound of it, and a later arguably better known version for Everton DaSilva's Hungry Town label in 1978.  Featured on the United Reggae Vol. 2 compilation on Magnet in the UK with horns, they are absent from the vocal side but are included on the version.  Classic Sleepy business!