Meghan Markle and Prince Harry celebrated their son Archie Harrison’s first birthday on Wednesday by releasing an adorable video of the Duchess of Sussex reading a book to her one year old. The video, which was shared on the nonprofit organization Save The Children UK’s social media page, revealed the Suits alum’s nickname for her baby boy. As Meghan held on to Archie on her lap reading Duck! Rabbit, the Los Angeles native told her son, “Look Arch.”

In the past, the Duchess has also referred to her baby boy as “bubba.” Meghan was heard calling Archie by the sweet moniker back in September as she carried him on their way to meet with South African human rights activist Archbishop Desmond Tutu and his daughter Thandeka during their royal visit to Africa.

Last month, Meghan and Harry revealed the inspiration behind their son’s name, while confirming that their new foundation will be called Archewell. “Before SussexRoyal came the idea of ‘arche’ — the Greek word meaning ‘source of action,’” the couple told The Telegraph. “We connected to this concept for the charitable organization we hoped to build one day, and it became the inspiration for our son’s name. To do something of meaning, to do something that matters. Archewell is a name that combines an ancient word for strength and action, and another that evokes the deep resources we each must draw upon.”

©Prince Harry via Save The Children UK

The Duke and Duchess of Sussex celebrated their son’s milestone from their new home in Los Angeles. The video, which was shot by Prince Harry, marked the first time royal fans have seen Archie since a photo of him was included in Sussex Royal’s 2019 year-in-review video. Archie’s birthday video was a part of Save The Children UK’s “Save the Stories” campaign, which supports vulnerable families in the UK and around the world by helping to provide early learning packs, supermarket vouchers, essential household items and virus protection amid the coronavirus pandemic. A number of Hollywood stars have participated in the campaign, including Eddie Redmayne and Lily James. Similarly, across the pond in the US, Jennifer Garner and Amy Adams launched in March the #SaveWithStories initiative to support coronavirus response efforts of Save the Children and No Kid Hungry.