Teamviewer host on Debian 8.1

Hello I have installed Teamviewer 13.1.1548 host on a Debian 8.1  and I have the  following problem. I must start the GUI or I can't connect to the host. If only the deamon is running it's not working.

The deamon start as excpected when the system start but it's impossible to connect. I start the GUI and it starts working immediatly.

Do you have any idea what the problem can be ?