We investigated basis set effects on the error due to single precision by using uracil. Table presents total energies and dipole moments. The results show that the errors in energies are negligible and that the differences in dipole moments computed in single and double precision are less than the number of digits printed in the output. Increasing the basis set from cc-pVDZ to cc-pVTZ and aug-cc-pVTZ does not increase the errors.