My Form 1099-INT from US Treasury is listed under just "Interest". Why it isn't shown under the "US Treasury Interest"?

On the letter from IRS has I only

Statement showing interest income feom the IRS, Calendar year(2021), Recipient's Number, and "Total Interest Paid or Credited" box where shows the amount.

After entering the name and the amount, it shows on the list under just "Interest". There is a section names "US Treasury Int", and I think it should be shown here. How can I report it as US Treasury interest? or Is this fine as just "interest"?