[apparmor] Combining Variables and Whitespace in AppArmor

[sepero111 at gmx.com]

I can't seem to get apparmor to accept combinations of variables and whitespace. 
Examples

owner "@{HOME}/my dir/" r,
owner @{HOME}"/my dir/" r,
owner @{HOME}/my\ dir/ r,

Is there a way to make it work, or must I use the primitive version? owner 
"/home/*/my dir/"