4-Methyl-7,8,9,10-tetrahydrocyclohepta[b]indol-6(5H)-one

In the title compound, C14H15NO, the seven-membered ring exhibits a slightly distorted twist-boat conformation. The pyrrole ring forms a dihedral angle of 1.44 (10)° with the fused benzene ring. N—H⋯O hydrogen bonds form a centrosymmetric dimer and weak C—H⋯π interactions are also found in the crystal structure.