X-ray powder diffraction data, unit-cell parameters and space group for 2-(ethylamino)-2-(3-methoxyphenyl)cyclohexan-1-one hydrochloride, C15H22ClNO2, are reported [a = 8.574(2) Å, b = 9.943(2) Å, c = 8.774(1) Å, β = 100.294(3)°, unit-cell volume V = 736(1) Å3, Z = 2, and space-group P21]. All measured lines were indexed and are consistent with the P21 space group. No detectable impurities were observed.