diff --git a/lib/Web/Hikaru/Action.hs b/lib/Web/Hikaru/Action.hs
index 2a2e2c9fe1d577f8cc11bb8af7e8bed4a2524525..082e0fcc9b76e1dbd612a545bdd4da4fe1843685 100644
--- a/lib/Web/Hikaru/Action.hs
+++ b/lib/Web/Hikaru/Action.hs
@@ -67,9 +67,6 @@ module Web.Hikaru.Action
   -- ** Finalizing
   , registerFinalizer
 
-  -- ** Helper Types
-  , ResponseMaker
-
   -- ** Action Environment
   , ActionEnv
   , makeActionEnv