Crystal of 1-(4-methoxybutyl)-N-(2-methylpropyl)-N-[(3S,5R)-5-(morpholin-4-ylcarbonyl)piperidin-3-yl]-1H-benzimidazole-2-carboxamidehydrochloride having an X-ray powder diffractionpattern showing characteristic peaks at interplanar spacings(d) of around 26.43~0.2, 7.62~0.2 and 4.32~0.2 angstroms, anda pharmaceutical composition comprising said crystal.