notification rendered behind other windows

i use elementary os, and installed the pantheon-notify package.

Then i added it to my pantheon.session, which looks like this:

[GNOME Session]
Name=Pantheon
RequiredComponents=gnome-settings-daemon
RequiredProviders=windowmanager;notifications;
DefaultProvider-windowmanager=gala
DefaultProvider-notifications=pantheon-notify
FallbackSession=ubuntu
DesktopName=Pantheon

And was tested from console with several commands, the icon works, the time works.

But is allways rendered behind other windows.