diff --git a/yesod-auth.cabal b/yesod-auth.cabal
index c2a9fc55..9cf245cc 100644
--- a/yesod-auth.cabal
+++ b/yesod-auth.cabal
@@ -7,7 +7,7 @@ maintainer:      Michael Snoyman <michael@snoyman.com>
 synopsis:        Authentication for Yesod.
 category:        Web, Yesod
 stability:       Stable
-cabal-version:   >= 1.6
+cabal-version:   >= 1.6.1
 build-type:      Simple
 homepage:        http://docs.yesodweb.com/
 
@@ -45,6 +45,7 @@ library
                      Yesod.Helpers.Auth.Facebook
                      Yesod.Helpers.Auth.OpenId
                      Yesod.Helpers.Auth.Rpxnow
+                     Yesod.Helpers.Auth.HashDB
     ghc-options:     -Wall
 
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