My 18 year old received a 1099 after I already filed and claimed his interest on my tax return

Hello, 

My son turned 18 in August of 2024 and is a Senior in high school. He received a 1099 for the interest on his savings account but my husband and I already filed our return and claimed his interest on our taxes using schedule B. Do I need to amend and file a 8814? Or do I amend and remove his interest completely and have him file his own? I’m so confused. I don’t want him to be in trouble for not filing if he has to