Ivanka Trump has disappeared from her father’s side at public events, but it seems the former First Daughter is still spending quality time with Dad behind closed doors.

A spy tells Page Six they spotted Ivanka, her sons Joseph, 9, and Theodore, 6, Melania Trump and her son Barron, 17, having dinner with Donald Trump at his Bedminster, N.J., club on Wednesday to celebrate his 77th birthday.

Ivanka — who has remained mum on Donald’s latest indictment over classified documents — also posted a birthday message for Pops on Instagram, saying, “You are the most incredible father. Your love, energy and strength inspire me every day. Wishing you a year filled with the happiness you deserve.”