In the title compound, C(14)H(13)NOS, the dihedral angle formed by the mean planes through the indane ring system and the thio-phene ring is 85.04 (11)°. The imine bond is located in the thio-phene plane [the S-C-C-N torsion angle is 0.00 (3)°] and an intra-molecular O-H⋯N hydrogen bond is observed.