The invention relates to a method for adjusting an oscillator clock frequency, comprising steps consisting in: applying a first control value (S1) to a first oscillator (OSC1); applying a second control value (S2) different from the first control value to a second oscillator (OSC2); measuring a frequency (N1, N2) of each of the first and second oscillators; determining by interpolation a corrected frequency measurement (N2C) of the second oscillator (OSC2) depending on a frequency difference measured between the first and second oscillators subjected to the same third control value, on the third control value, and on the control value (S2) applied to the second oscillator; determining by interpolation a new first control value (S1') depending on the measured frequency of the first oscillator, on the corrected frequency, on the first and second control values, and on a desired frequency (NC1); and in applying the new first control value to the first oscillator.