In the title compound, C(7)H(6)ClN(3), the benzotriazole ring is essentially planar with a maximum deviation of 0.0110 (15)Å, and makes a dihedral angle of 0.46 (8)° with the benzene ring. In the crystal, mol-ecules are linked through inter-molecular C-H⋯N hydrogen bonds, forming chains along the c axis.