In the title compound, C9H13NO2S, the dihedral angle between the thiophene ring and the carbamate group is 15.79 (14)°. In the crystal structure, intramolecular C - H⋯O interactions in tandem with the tert-butyl groups render the packing of adjacent molecules in the  direction nearly perpendicular [the angle between adjacent thiophene rings is 74.83 (7)°]. An intermolecular N - H⋯O hydrogen bond gives rise to a chain extending along . The crystal studied was found to be a racemic twin. © 2013 Hsu et al.