lb vs lbf

I input E (Young's modulus) with units of psi or lbf/in^2.

When I call it up or use it in a calculation the units become as shown below

E=1.158x10^10 lb/in*s^2.

I have to go in and change lb to lbf and it fixes it.

Is there anything I can do to eleminate having to change lb to lbf?

Thanks
Jack Smith
Stress Engineering