This article discusses how test automation can help achieving continuous delivery. It suggests to start small with a good investment on a robust automation suite, to give it your best people and to cultivate habits in your team that respect tests. Test automation reduces cycle times and also improves the cost of each deployment.This is achieved by earlier feedback to developer through automated tests improves the quality of builds that the testers work on, provided they pick up green builds. There is also a direct reduction in testing cost, as fewer people are needed to run the tests.