A catalyst lowers the activation energy of the forward reaction by $10\mathrm{kJ}{\mathrm{mol}}^{-1}\text{. }$ What effect it has on the activation energy of the backward reaction?

A catalyst lowers the activation energy of the forward reaction by $10\mathrm{kJ}{\mathrm{mol}}^{-1}\text{. }$

Ibn this reaction effect of catalyst has on the activation energy of the backward reaction as it Decrease by $10\mathrm{kJ}{\mathrm{mol}}^{-1}$.