Halpern and Pearl ([2005a], [2005b]) use the framework of structural equation models to define a notion of explanation that is based on actual causation. But while Halpern and Pearl’s definition of actual causation has been met with ample, often constructive, criticism, their subsequent definition of explanation has not faced similar scrutiny. It only underwent a slight reformulation by Halpern ([2016]). In this article, I will show that Halpern and Pearl’s definition of explanation is, despite many promising features, still problematic, even if we presuppose adequately defined causal concepts. I will propose some changes to Halpern and Pearl’s definition and argue that those changes are able to resolve the revealed problems while maintaining all the benefits of their approach.