What is the daily allowance of sugar for a baby?

I know that the daily allowance for an adult is about 60g of refined sugar and 30g of unrefined, but I could not find a guideline for a baby? I cook almost all meals for my baby just lately I gave him second stage milk vanilla flavor in the morning and evening. Now that I checked that on 100ml are 6g of sugar I find that a bit much or not? Btw he only drinks about 120ml in the morning and evening. He is 8 months old now.