Amazon’s dominance of the cloud is slipping, reports Quartz. While the cloud is still profitable for Amazon, it is not nearly as profitable as it was a year ago.

Cloud services, a business Amazon originally entered to support its own infrastructure, has become incredibly fruitful for the online retailer. In the past year, AWS generated more revenue on its own than McDonald’s or Qualcomm, and nearly as much as Mondelez and Macy’s.