Why don't the Social Security wages I reported on my Federal Return flow over to my Kansas State Income Tax return as a modification to Ks State taxable income?

Social Security wages were deducted as a modification to Kansas State taxable income in 2017.  It did not flow over from my Federal Income pages to the Kansas State income adjustments in this 2018 return, but the Kansas K-40 form shows that there is a place for it.  Not including this income modification raises my taxes significantly.