Mom wont let baby horse drink?

hey there, my miniature mare just gave birth to a healthy lil filly , but she wont let it drink. it is her first baby so she probably doesnt understand what its trying to do, but the problem is she is being a very protecive mom, which is a good thing, but she wont let me help the baby. She has kicked me multiple times already. Does anyone have any ideas on how to help the baby?