How to use space in Root for TFS VCS configuration

We are using TFS as VCS and have a project with space in TFS project name. I can't get the space in tfs project name to work. The settings i have are:

URL: http://myserver:8080/tfs
Root: $/Something WithSpace

I have tried
Root: $/Something%%20WithSpace

since I found that you could use that for the url but that doesn't work for the Root.