Prince Harry has lost another staffer after the CEO of his children’s charity Sentebale has stepped down.

Chief executive Richard Miller, who was based in London, quit his post after five years in the role at the youth-focused organization Harry co-founded with Prince Seeiso of Lesotho in 2006.

The Duke of Sussex, 40, founded his charity, which translates to “forget me not,” to honor his late mother, Princess Diana, whose favorite flowers were forget-me-nots. The charity helps disadvantaged children.

The organization has confirmed Miller’s departure, saying he will be replaced by an interim executive director, Carmel Gaillard, who is based in Johannesburg, South Africa.

“This shift reflects our continued commitment to being guided by voices from within the region we serve,” Harry and Seeiso said in a statement.

“We sincerely thank Richard for his pivotal role in steering our organization toward this important evolution.”

In his own statement, Miller said that his replacement is “the logical next step” for the charity, adding that “the time is right for this shift to local leadership.”

“Carmel is an incredible asset to position Sentebale further as a leader in the region,” Miller added.

Miller’s departure comes just one month after Andrew Tucker stepped down from his senior position at Sentebale after almost a decade.