It's a relief for Hefner, who at first had to deal with the loss of two companions.
"Crystal took Charlie with her when she left and I really miss him," he wrote last week on Twitter.
Charlie belonged to Harris, and even posed with him for the latest cover of Playboy, but the Cavalier King Charles spaniel called the Playboy Mansion home.
Hefner was clearly fond of the pup, having also posted photos of Charlie's second birthday celebration on Twitter.
And when Harris paid a visit to Hefner on Father's Day, she came to the house bearing good news.
"Crystal brought Charlie back because she thinks he's happier here," Hefner wrote. "I appreciate it, because I really missed him."
Courtesy Hugh Hefner