diff --git a/yesod-auth/kerberos.hs b/yesod-auth/kerberos.hs
index 38d5647a..b2ae42b7 100644
--- a/yesod-auth/kerberos.hs
+++ b/yesod-auth/kerberos.hs
@@ -9,7 +9,6 @@ import Yesod.Form
 import Yesod.Auth.Kerberos
 
 data Kerberos = Kerberos
-type Handler = GHandler Kerberos Kerberos
 
 mkYesod "Kerberos" [parseRoutes|
 / RootR GET