State tax filing

The Illinois Schedule CR (credit for tax paid to other states) I think is where the problem exists. Column A, Line 1 comes from the Federal Form 1040 Line 1z and is the total of all the wages. Column B is the Non-Illinois Portion which, in this case, is for the Missouri wages. However, the Missouri wages are already in Column A that auto-populates from the Federal form 1040. Am I supposed to override/adjust Column A that is the total of all of the wages and remove the Missouri wages from this?