Form 1065 (K-1) Partnership Employer contribution to 401K

I used Turbo Tax business to complete partnership taxes and then transferred the k-1 manually into Turbo Tax premier for pass-through income.  The box 13R employer contribution to retirement (401K) does not appear to reduce taxable income.  I may be mis-reading the tax law.  Is it not the case that employER contributions are pre-tax and so would reduce the partnership income?