Ohio Nonresident Credit

My husband and I live in PA but because he is a student, he still maintains OH residency. In years past, the individual who did our taxes was able to get us the nonresident credit (for OH). However, I cannot figure out how to make that happen. When I view our 2020 return, line 26 only has one income and line 27 is both. For the past two years, both line 26 and 27 have been the same. How do I make sure they are the same??