diff --git a/dsc.cabal b/dsc.cabal
--- a/dsc.cabal
+++ b/dsc.cabal
@@ -3,7 +3,7 @@
 -- see: https://github.com/sol/hpack
 
 name:                dsc
-version:             0.1.1
+version:             0.1.2
 synopsis:            Helper functions for setting up Double Submit Cookie defense for forms
 description:         See README at <https://github.com/qoelet/dsc#readme>
 homepage:            https://github.com/qoelet/dsc#readme
diff --git a/src/Web/Csrf.hs b/src/Web/Csrf.hs
--- a/src/Web/Csrf.hs
+++ b/src/Web/Csrf.hs
@@ -4,6 +4,7 @@
 , mkCsrf
 , getCsrf
 , runCheck
+, unMkToken
 ) where
 
 import           Codec.Crypto.SimpleAES
@@ -42,3 +43,6 @@
 
 mkCsrf :: Key -> ByteString -> ByteString -> Csrf
 mkCsrf key c t = runCheck key (Csrf (MkToken c) (MkToken t) Nothing)
+
+unMkToken :: Token -> ByteString
+unMkToken (MkToken x) = x