An apparatus is provided for adjusting an installation position of modules in a self-service device that has a first module, a second module and a transfer module with a transfer slot for transferring notes of pecuniary value from the first module to the second module or vice versa. The transfer module is held in an operating position by a fastening device and forms a spacing to the second module. An adjusting mechanism is associated with the transfer module so that the transfer module, by forming different spacing to the second module, is mounted so as to be adjustable in an adjusting direction that extends perpendicularly with respect to the transfer slot and in a transfer plane of the notes of pecuniary value which is predefined by the transfer slot.