A Lifshitz-Slyozov-type of model of the coalescence of dry zones in the process of metastable dewetting proposed in V. S. Mitlin (J. Colloid Interface Sci. 227, 371, 2000) is applied to simulating the evolution of the probability distribution of holes by sizes. For the model considered, the average size of a hole increases linearly with time, the surface fraction of holes grows as the time squared, and the maximum value of the probability distribution decreases as the inverse square root of time,