Need help with a small problem

http://images.akamai.steamusercontent.com/ugc/31867982572594241/A31DE47E898700B18A18A7717F4B55C879052A96/

http://images.akamai.steamusercontent.com/ugc/31867982572595126/792553135AEA22E6B7D4B9031378CB295510BEA3/

How do I fix that tiny thing stretching from the backpack to the head?

[editline]14th May 2015[/editline]

Nvm, opened it in Weight Painting and saw that it was still unpainted. Sorry for that waste of time.

PS: How do you close threads in Facepunch?