The man who warned his followers that Judgment Day would come last May was hospitalized after he suffered a mild stroke.
Staff at Harold Camping's Family Radio said the 89-year-old preacher is recovering in an Alameda hospital after the stroke on Thursday.
Camping predicted the world would end on May 21, 2011.
"It is not something where it's a tiny, tiny, tiny chance it may happen. It is going to happen,” Camping told the Huffington Post before the predicted Judgment Day.
After the world did not come to a screeching halt, Camping insisted that his calculations were not incorrect, and that the end would come on October 21, 2011.
Camping made his first incorrect end of days prediction in 1994.