401k contribution not on Schedule K-1

This is my first year getting a K-1. I am a member of a law firm (an LLC). I contributed $19,500 to the firm's 401k plan for 2020, yet my Schedule K-1 does not appear to reflect this contribution anywhere. Should it be listed in Part III, Section 13, code R? (It's not.) Or is it possible it was already deducted from ordinary business income?

 

Thank you in advance.