1099R and 403b issue

I downloaded my info from Fidelity which included a 1099R for IRA and a 1099R for 403b.   On line D of the RMD Excess Accumulation Worksheet it lists both for an IRA.  I tried to change the 2nd to a 403b with no sucess and being able to make a change.  Double clicking on the box does not take me to a source.  The 1099R I get from Fidelity does not show it as a IRA or 403b that I can see.   It does not make any difference in the taxes, but I would think the info from the 403b would be on line 5 a and b of the 1040 rather than all on the line 4 as IRA in order to be correct.  

I did not notice at the time, but 2023 had same issue.

How can I correct to reflect as 403b?