Jenkins build not triggered when a new tag is pushed

Hi,

I have a gitlab ce 8.5.1 running on a ubuntu server 16.04. And a jenkins server running on the same machine, the version of jenkins is 2.2. I would like to run some jenkins builds when commit pushes or tag pushes are made. The hooks configured for push events are working perfectly. But the tag push events are not. They are never fired.

What am I missing?

Thanks