diff --git a/yesod-core/Yesod/Core/Class/Dispatch.hs b/yesod-core/Yesod/Core/Class/Dispatch.hs
index fe014ac2..cf998477 100644
--- a/yesod-core/Yesod/Core/Class/Dispatch.hs
+++ b/yesod-core/Yesod/Core/Class/Dispatch.hs
@@ -11,9 +11,9 @@ import Yesod.Routes.Class
 import qualified Network.Wai as W
 import Yesod.Core.Types
 import Yesod.Core.Content
+import Yesod.Core.Handler (stripHandlerT)
 import Yesod.Core.Class.Yesod
 import Yesod.Core.Class.Handler
-import Yesod.Core.Internal.Run
 
 -- | This class is automatically instantiated when you use the template haskell
 -- mkYesod function. You should never need to deal with it directly.
@@ -31,7 +31,8 @@ instance YesodSubDispatch WaiSubsite master where
         WaiSubsite app = ysreGetSub $ yreSite $ ysreParentEnv
 
 -- | A helper function for creating YesodSubDispatch instances, used by the
--- internal generated code.
+-- internal generated code. This function has been exported since 1.4.11.
+-- It promotes a subsite handler to a wai application.
 subHelper :: Monad m -- NOTE: This is incredibly similar in type signature to yesodRunner, should probably be pointed out/explained.
           => HandlerT child (HandlerT parent m) TypedContent
           -> YesodSubRunnerEnv child parent (HandlerT parent m)
diff --git a/yesod-core/Yesod/Core/Dispatch.hs b/yesod-core/Yesod/Core/Dispatch.hs
index b0c32d17..072181d3 100644
--- a/yesod-core/Yesod/Core/Dispatch.hs
+++ b/yesod-core/Yesod/Core/Dispatch.hs
@@ -30,7 +30,7 @@ module Yesod.Core.Dispatch
     , defaultMiddlewaresNoLogging
       -- * WAI subsites
     , WaiSubsite (..)
-    , subHelper
+    , module YCCD
     ) where
 
 import Prelude hiding (exp)
@@ -70,7 +70,7 @@ import Control.Monad (when)
 import qualified Paths_yesod_core
 import Data.Version (showVersion)
 import qualified System.Random.MWC as MWC
-import Yesod.Core.Class.Dispatch (subHelper)
+import Yesod.Core.Class.Dispatch as YCCD (subHelper)
 
 -- | Convert the given argument into a WAI application, executable with any WAI
 -- handler. This function will provide no middlewares; if you want commonly
diff --git a/yesod-core/Yesod/Core/Handler.hs b/yesod-core/Yesod/Core/Handler.hs
index 88d27620..8116864b 100644
--- a/yesod-core/Yesod/Core/Handler.hs
+++ b/yesod-core/Yesod/Core/Handler.hs
@@ -218,7 +218,6 @@ import Data.Conduit (Source, transPipe, Flush (Flush), yield, Producer
                    )
 import qualified Yesod.Core.TypeCache as Cache
 import qualified Data.Word8 as W8
-import Yesod.Core.Internal.Run (stripHandlerT)
 
 get :: MonadHandler m => m GHState
 get = liftHandlerT $ HandlerT $ I.readIORef . handlerState
@@ -1240,3 +1239,22 @@ sendChunkLazyText = sendChunk
 -- Since 1.2.0
 sendChunkHtml :: Monad m => Html -> Producer m (Flush Builder)
 sendChunkHtml = sendChunk
+
+-- | Converts a child handler to a parent handler
+--
+-- Exported since 1.4.11
+stripHandlerT :: HandlerT child (HandlerT parent m) a
+              -> (parent -> child)
+              -> (Route child -> Route parent)
+              -> Maybe (Route child)
+              -> HandlerT parent m a
+stripHandlerT (HandlerT f) getSub toMaster newRoute = HandlerT $ \hd -> do
+    let env = handlerEnv hd
+    ($ hd) $ unHandlerT $ f hd
+        { handlerEnv = env
+            { rheSite = getSub $ rheSite env
+            , rheRoute = newRoute
+            , rheRender = \url params -> rheRender env (toMaster url) params
+            }
+        , handlerToParent = toMaster
+        }
diff --git a/yesod-core/Yesod/Core/Internal/Run.hs b/yesod-core/Yesod/Core/Internal/Run.hs
index 651c11ca..6725fa3b 100644
--- a/yesod-core/Yesod/Core/Internal/Run.hs
+++ b/yesod-core/Yesod/Core/Internal/Run.hs
@@ -320,19 +320,3 @@ resolveApproot master req =
         ApprootStatic t -> t
         ApprootMaster f -> f master
         ApprootRequest f -> f master req
-
-stripHandlerT :: HandlerT child (HandlerT parent m) a
-              -> (parent -> child)
-              -> (Route child -> Route parent)
-              -> Maybe (Route child)
-              -> HandlerT parent m a
-stripHandlerT (HandlerT f) getSub toMaster newRoute = HandlerT $ \hd -> do
-    let env = handlerEnv hd
-    ($ hd) $ unHandlerT $ f hd
-        { handlerEnv = env
-            { rheSite = getSub $ rheSite env
-            , rheRoute = newRoute
-            , rheRender = \url params -> rheRender env (toMaster url) params
-            }
-        , handlerToParent = toMaster
-        }
diff --git a/yesod-core/yesod-core.cabal b/yesod-core/yesod-core.cabal
index ed564de2..c9dd541a 100644
--- a/yesod-core/yesod-core.cabal
+++ b/yesod-core/yesod-core.cabal
@@ -1,5 +1,5 @@
 name:            yesod-core
-version:         1.4.10
+version:         1.4.11
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>