Effect of discrepancy between a priori specified and actual statistical characteristics of stellar scintillation on the error of ozone vertical profile retrieval is considered. The measurement noise caused by scintillation is a heavily varying quantity depending on the strength of atmospheric turbulence and measurement geometry. The rms values of the scintillation noise can measure from 5 to 20% of atmospheric transmittance. It is shown that the spectral correlation of scintillation may play an essential role in constructing an inversion. Ignoring this correlation can increase the error of ozone determination for heights 25-40 km by a factor of 2 to 3. It is shown that inversions appear more stable if the prior value of scintillation intensity is overestimated. In this case, the error increases relatively slightly. On the contrary, underestimating the scintillation intensity can significantly increase the error of inversion. Spectral correlation coefficients of scintillation appreciably determine the efficiency of suppressing the additional measurement noise caused by stellar radiation scintillation.