IL state tax on distribution from Utah 529

Hello,

My family live in Illinois and my son goes to an Illinois State University as freshman. The expenses and tuition are covered by the funds from his 529 with Utah.  Do we need to disclose the 529 distribution, which was used 100% to cover the qualified college expenses, in Illinois state tax filing? Will it have any impact on our state income tax?

 

Many thanks!

David