Cannot create archive in Desktop with --add parameter

S.O.: Ubuntu 12.04.1 LTS
Package installer: 3.4.1-0ubuntu1

I'm using this command in order to create an archive, with the window that ask the archive position:

file-roller --add /home/sbagnatica/Documenti/Test/File1.odt

(this is the same command issued by the integrated Nautilus extension)

If I don't have any subfolder in Desktop, I can select the Desktop and it works right.

Instead, if I have a subfolder in Desktop, that subfolder will be always be selected instead of the main Desktop folder.

See these screenshot...

1) selecting the "Desktop" folder (it's named "Scrivania" in italian language)
http://i.imgur.com/5y9TF.png

2) "My folder" is selected instead
http://i.imgur.com/udf11.png