In the title compound, C10H13NS2, the seven-membered ring adopts a chair conformation. The S-S bond length is 2.0406 (5) Å and the C-S-S-C torsion angle is -83.89 (7)°. The amine group is sp (2)-hybridized. In the crystal, mol-ecules are linked into chains along [001] by weak inter-molecular S⋯S contacts of 3.5246 (5) Å.