Dog and baby

Help! I have. Super adorable dog whom I love like crazy but I'm terrified for when we bring the baby home! We babysit a friends baby and he constantly tries to lick her face! She is 16 months and loves it and laughed but I hate it and don't want to encourage it! I tell him no and push him away but nothing seems to be working!! How can I train him to stop before our baby arrives?