How to create case-insensitive account name report?

We have an account report that allows users to enter part of an account name and return matching results. The prompt is case sensitive but I would like it to be case insensitive.

Since the left pane search for Account Name is case-insensitive and you can select case-insensitive when creating account list views, I am hoping there is a way to apply this same functionality to a report.

I understand I can convert Account Name to upper or lower and tell people to search that way, but that will be a last resort.

Any suggestions on how to make the prompt value and report results for Account Name case-insensitive?