Robin Williams and Zelda Williams attends the 'Old Dogs' Premiere at the El Capitan Theatre on November 9, 2009 in Hollywood, California. (Photo by Steve Granitz/WireImage)

Robin Williams' daughter is keeping the memory of her late father alive in a very permanent and personal way.

On Tuesday, Zelda Williams shared a photo of the newly inked hummingbird on her right hand, along with the beloved actor's birthdate, "7.21.51." The tattoo is a tribute to her father, who died in August.

"For poppo," she wrote along with the photo. "Thank you to the incomparable @dr_woo_ssc for so beautifully bringing my reminders to life. I'll always put my hand out to shake with a smile."

The 25-year-old, who previously quit Twitter and Instagram after being taunted by trolls following her father's death, went on to say that she wasn't sure how she'd be using her account in the future.