1. A method for adapting a mixture for a pilot control process for setting a fuel/air mixture for operating an internal combustion engine, wherein the pilot control process sets a fuel quantity as a function of an air quantity by means of an adaptable parameterized relationship, characterized in that during an adaptation process a current measuring point is determined from an air quantity and a fuel quantity in which a predefined lambda is achieved, in that a current operating range in which the measuring point lies is determined, in that a deviation of the measuring point from an operating point lying in a current operating range is determined, in that a corrected operating point between the operating point and the measuring point is determined, and in that corrected parameters of a parameterized relationship are determined from the corrected operating point and the operating points and parameter values of a preceding adaptation step not lying in the current operating range.