How do I dynamically set the checked property on a checkbox in Aurelia based on condition

I have a list of objects that I am using to create a menu with checkboxes. I want to set the checked property on these checkboxes on load by basing it off of an Enum value that the object model has.

Here is an example of what I tried:

<li repeat.for="item of items">
    <input type="checkbox" checked="${item.status == 'EnumValue' ? 'checked' : '' />
</li>

This did not work. Can anyone give me a nudge in the right direction?

Thanks!