The modular design of software systems is an important factor that contributes to the success of software engineering projects. It is enabled by a set of design principles, among which information hiding and separation of concerns are the most influential ones. Their application limits coordination needs and fosters the simple replacement of components, thus facilitating sustainable software engineering processes. Many software systems are initially created in a modular way. However, over time modularity often degrades as components are reused outside the context where they were created. My work proposes an automated strategy to remodularize software based on move refactoring, i.e. the simplest possible refactoring which moves classes between packages without changing other aspects of the code. Main goal is to automatically identify move refactoring that result in a large improvement of modularity.