My husband is a federal civil servant receiving COLA. Is it subject to Hawaii state tax?

We are residents of Hawaii.  When we filed our 2019 income tax return, we seem to remember that we need to adjust the Aggregate Gross Income (AGI) in From N-11 line 8 because of COLA (cost of living adjustment).  I may have accidentally bypassed the question about COLA while working through our 2020 filing and am not sure where or how I should update the information.  Please advise.

 

Thanks, 

HK808