Oliver Hudson is glad he called out his biological dad for abandoning him and sister Kate last Father’s Day — it’s brought the two back together.

“It actually started a dialogue,” the actor told Andy Cohen of the now-famous Instagram post – an image of him and his sister as children with their father he captioned “Happy abandonment day…” – on Tuesday’s episode of “Watch What Happens Live.” “I haven’t talked to my father in 12 years. In my sort of dark, crazy sense of humor, I posted this ‘Happy Abandonment Day’ thing, which, you know, everyone went crazy about. I was just trying to be funny.”

Oliver was quick to point out that things aren’t perfect between the two, but that they’re getting better.

“At the end of the day it was a good thing. We’re communicating now. I had an amazing three-hour conversation with him. We’re texting and we’re trying to see each other. We might be mending something,” the 39-year-old “Scream Queens” star explained.

In the wake of the post, Oliver’s biological father, musician Bill Hudson, said that Oliver and Kate were dead to him.

“I had five birth children and I now consider myself a father of three,” he said in June. “I no longer recognize Oliver and Kate as my own. I would ask them to stop using the Hudson name. They are no longer a part of my life. Oliver’s Instagram post was a malicious, vicious, premeditated attack. “

Oliver and Kate’s stepfather, actor Kurt Russelltried to smooth things over in July, saying that things between his stepson and Bill had improved.

“I understood Oliver’s sense of humor and since then, there’s been some nice back and forth between Bill and Oliver that’s nice to see,” the “Hateful Eight” star said.

This article originally appeared in the New York Post's Page Six.