Psychologists and philosophers have written much about gratitude recently. Many of these contributions have endorsed expansionist views of gratitude, counseling agents to feel and express gratitude in many circumstances. I argue that the essential features of the moral norm of gratitude are that a beneficiary acknowledges and appreciates benefits provided by another who is acting from beneficence, and is disposed to provide a comparable benefit to the benefactor if a suitable occasion arises. The best-known philosophical version of expansionist views claims (...) that gratitude is apt even in cases where the “benefactor” not only did not intend to benefit the other, but intended to harm her. In the psychological literature, expansionists typically do distinguish between being grateful to and being grateful that. But they also write as if there is one general character trait of gratefulness. In this paper I argue that the philosophical position considered is mistaken on conceptual and moral grounds, and that the dominant view among psychologists fails to recognize the difference between two different traits of gratitude, one a moral virtue and the other a prudential virtue. (shrink)