diff --git a/yesod-auth/ChangeLog.md b/yesod-auth/ChangeLog.md
index 7cce78bf..ea924908 100644
--- a/yesod-auth/ChangeLog.md
+++ b/yesod-auth/ChangeLog.md
@@ -1,6 +1,11 @@
+## 1.4.17
+
+* Add Show instance for user credentials `Creds`
+
 ## 1.4.16
 
 * Fix email provider [#1330](https://github.com/yesodweb/yesod/issues/1330)
+* Document JSON endpoints of Yesod.Auth.Email
 
 ## 1.4.15
 
diff --git a/yesod-auth/Yesod/Auth.hs b/yesod-auth/Yesod/Auth.hs
index c4cef202..dda8182f 100644
--- a/yesod-auth/Yesod/Auth.hs
+++ b/yesod-auth/Yesod/Auth.hs
@@ -105,7 +105,7 @@ data Creds master = Creds
     { credsPlugin :: Text -- ^ How the user was authenticated
     , credsIdent :: Text -- ^ Identifier. Exact meaning depends on plugin.
     , credsExtra :: [(Text, Text)]
-    }
+    } deriving (Show)
 
 class (Yesod master, PathPiece (AuthId master), RenderMessage master FormMessage) => YesodAuth master where
     type AuthId master