Adding Newborn in Jawazat System

Assalam,

As my family is on Visit Visa and now I have baby boy born here in Riyadh. Visit Visa was already renewed 2 times, now visit is about to finish (next month).
Until now I got Birth Certificate from Saudi Civil Affairs, Passport & Birth Certificate from embassy.
WHAT IS THE NEXT PROCEDURE IN JAWAZAT OR TO GO FINAL EXIT as visit is about to finish

If anyone knows regarding the subject please let me know the details ASAP

Last year same was the case with me, i went to jawazzat visit visa section 5 days before visa expiring and they told me to come on the last day of visa expiring, i went there and they just stamped the passport of newborn baby and that's it. Do not forget to cary original birth certificate and its photocopy with you as airport authorities will keep a copy of birth-certificate with them.

When you are going??? if you find any change in this please do inform me.