Demi Moore is "thankful" for her blended family with ex-husband Bruce Willis.

The "Ghost" actress, 59, took to Instagram over the weekend to celebrate Willis' birthday and share a lovely sentiment about the three children they share.

"Happy birthday, Bruce! Thankful for our blended family," Moore wrote alongside a photo of her and Willis smiling for the camera.

The former couple, who were married from 1987 until 2000 and have remained friendly since, share three daughters: Rumer, 33, Scout, 30, and Tallulah, 28.

Willis, 67, also shares two daughters -- Mabel, 9, and Evelyn, 7 -- with wife Emma Heming, whom he married in 2009.

Heming commented on Moore's Instagram photo with the "Die Hard" actor, replying with two red heart emojis.