Keshia Knight Pulliam has made a promise to her late television brother, Malcom-Jamal Warner. Knight Pulliam, who as a child star played Rudy Huxtable on “The Cosby Show,” posted a tribute to Warner on social media over the weekend.

Malcolm-Jamal Warner was remembered by his longtime friend and Cosby Show co-star, Keshia Knight Pulliam, one week after his death. In a video posted to Instagram, Pulliam, 46, shared footage of Warner playing guitar onstage at City Winery Atlanta. She captioned the post with a promise that she would be there for Warner’s daughter.