Help Is another knot in the noose knot necessary to prevent it from unraveling after kicking/getting up from the chair?

[Yoñlü×]

I'm afraid that the knot where it will be on the neck (Noose Knot) will come undone, is an extra knot needed or is everything ok? Is there anything/some things we should take care of before kicking/getting down from the chair?
Thank you in advance for your attention!