Filing only MA State Taxes by doing a Mock federal results in Total federal income on MA different than my 1040

I've filed my federal Tax return separately through a CPA because it is way complicated.

I'm a non-resident of Massachusetts (MA).

I have one item that is considered MA-sourced income. 

I understand that I need to do a mock Federal in order to print and mail my MA state return.

 

I cannot recreate the entire Federal Tax return in TurboTax, because it is way complicated, so I entered only my one source of MA income (let's say 12,000).

 

When I print the MA State return it shows in the first page just  below the X non-resident status my "Total Federal Income" being just that one item 12,000 while my "Total Federal Income" on my 1040 done through a CPA is higher due to Foreign income and other non-MA State sourced income. 

 

Is this OK? 

Thank you