Sync google calendar not working topic

Dears,

I am running CM 11 (11-20140130-NIGHTLY-t0lte) with gapps-kk-20140105.
When going to my google account to synchronize, I can see this:
App Data
Contacts
Drive
People Details
Sound search for google play

Nothing for my google calendar.
I am able to sync my contacts and gmail.

Thx