Closure for power adapter

I don't had much space on the backside of my prusa enclosure, so I have cut the opening for the power supply in one of the side glasses (and extended the cables). So this is the plug for closing the opening in the back cover of the enclosure.Printed it out of white Prusament PETG with a 0,4mm nozzle and 0,3mm layer high.Please feel free to use the step drawing to make some changes, maybe a cable pass through or something else.