Form 8949 shows incorrect basis for sale not reported on 1099-B

I redeemed my interest in a limited partnership directly with the LP itself, and received a K-1 from the partnership, but no 1099-B from the broker.  In TurboTax, I completed the K-1 input pages, noting that I disposed of my interest.   I entered the proceeds from the sale and the partnership basis.  The next page in the K-1 section correctly showed the difference between the proceeds and basis.  However, while reviewing the completed forms prior to filing, I noticed that Form 8949 Part II (with Box F checked) shows the proceeds and the basis as the exact same amount.   It does not correctly show the basis that I entered earlier.  What can I do to get that basis updated?