Filament guide, for spool; Masterspool

As my spool stands quite far behind my Ender 5 pro, at the start of prints with a new spool, sometimes the filament would unwind at the start of the print as the direct drive hot end moved across the build plate.

So I designed this simple thing, with the masterspool: https://www.thingiverse.com/thing:2769823 ,
in mind.

You just put it behind the spool, it should fit just between the spools inner walls, however, NOT YET TESTED!
It should keep the filament "around" the spool even if there were some slack made around the spool.

Feel free to remix and what not.