We used the B3LYP/6-31G(2df,p) optimized geometries from the dataset 30 to calculate single point energy at different DFT levels with the TZP basis set. The Amsterdam modeling suit (SCM) was used to compute the DFT energies. During SCF, the GGA part was computed using the PBE functional and the energies of the other functionals were calculated using the post-SCF method. Therefore, in principle, our correction method is applicable to situations where post-SCF methods are used to compute the DFT level energies.