diff --git a/nested-routes.cabal b/nested-routes.cabal
--- a/nested-routes.cabal
+++ b/nested-routes.cabal
@@ -1,5 +1,5 @@
 Name:                   nested-routes
-Version:                0.2.0.2
+Version:                0.2.1
 Author:                 Athan Clark <athan.clark@gmail.com>
 Maintainer:             Athan Clark <athan.clark@gmail.com>
 License:                BSD3
@@ -32,7 +32,7 @@
                       , lucid
                       , bytestring
                       , attoparsec
-                      , pred-trie >= 0.0.6.1
+                      , pred-trie >= 0.0.7.1
 
 Test-Suite spec
   Type:                 exitcode-stdio-1.0
diff --git a/src/Web/Routes/Nested.hs b/src/Web/Routes/Nested.hs
--- a/src/Web/Routes/Nested.hs
+++ b/src/Web/Routes/Nested.hs
@@ -46,7 +46,11 @@
 import qualified Data.ByteString.Lazy              as BL
 import           Data.Maybe                        (fromMaybe)
 
+import Debug.Trace
+import Data.Trie.Pred.Unified
+import Data.Trie.Pred.Unified.Tail
 
+
 newtype HandlerT z m a = HandlerT
   { runHandler :: WriterT ( RUPTrie T.Text (Either (VerbListenerT z (FileExtListenerT Response m ()) m ()) (VerbListenerT z Response m ()))
                           , RUPTrie T.Text (Either (VerbListenerT z (FileExtListenerT Response m ()) m ()) (VerbListenerT z Response m ())) ) m a }
@@ -157,7 +161,6 @@
       mFileext = case pathInfo req of
                          [] -> Just Html
                          xs -> possibleExts $ getFileExt $ last xs
-      -- meitherNotFound :: Maybe (Either (VerbListenerT z (FileExtListenerT Response m ()) m ()) (VerbListenerT z Response m ()))
       meitherNotFound = P.lookupNearestParent (pathInfo req) nftrie
 
   notFoundBasic <- handleNotFound Html Get meitherNotFound