Setting a keyboard shortcut to interactively select a screenshot (sxhkd/scrot)

I would like to add a keyboard shortcut using [sxhkd](https://github.com/baskerville/sxhkd) let me select a region of my desktop to screenshot using [scrot](https://en.wikipedia.org/wiki/Scrot) . This should be accomplished by adding this section to my sxhkd file, ctrl + alt + x scrot --select but this doesn't work. The command scrot --select works fine when issued from a terminal, and this keyboard shortcut works fine if I change --select to something non-interactive like --focused, so I'm not sure why the above sxhkd entry is not working, but I suspect that it has to do with --select being interactive. Why doesn't this work?