Green screen white spot

MartyMCP Website User Posts: 3

I have a very space-restricted setup for live streaming on Twitch which includes a green screen behind me. For the most part it works perfectly but in the top corner there is a white zone where my bedroom light is situated right next to the edge of the screen. Due to space issues I can't use lamps instead of my light and a couple of LED wardrobe lights stuck to the back of my chair to light it up. So I'm wondering if anyone knows of a way I could eliminate the white area without having to sacrifice my lighting in any way. Like maybe if I create a custom lamp shade or something to cover just that top corner of the green screen. 

Like I said the area I have to work with is very restrictive so there's not a lot I can do to customise it so any ideas would be very welcome.