The comedian starred in films Ocean's Thirteen and Transformers last year
Comedian Bernie Mac has spent the weekend in a Chicago hospital after coming down with pneumonia, his publicist has said.
Danica Smith said in a statement that the 50-year-old was "responding well to treatment and will be released soon".
Ms Smith added the pneumonia was not related to an inflammatory lung disease the comedian also has. That condition has been in remission since 2005.
Mac starred in his own US sitcom, The Bernie Mac Show, from 2001 to 2006.
His performance in the programme earned him numerous award nominations including two at the Emmys and the Golden Globes.
Mac, a Chicago native, also starred in last year's box office hits Ocean's Thirteen and Transformers.