diff --git a/pipes-misc.cabal b/pipes-misc.cabal
--- a/pipes-misc.cabal
+++ b/pipes-misc.cabal
@@ -1,5 +1,5 @@
 name:                pipes-misc
-version:             0.2.1.1
+version:             0.2.2.0
 synopsis:            Miscellaneous utilities for pipes, required by glazier-tutorial
 description:         Please see README.md
 homepage:            https://github.com/louispan/pipes-misc#readme
@@ -16,7 +16,6 @@
 library
   hs-source-dirs:      src
   exposed-modules:     Pipes.Misc
-                       Pipes.Stopwatch
   build-depends:       base >= 4.7 && < 5
                      , clock >= 0.7 && < 1
                      , lens >= 4 && < 5
diff --git a/src/Pipes/Stopwatch.hs b/src/Pipes/Stopwatch.hs
deleted file mode 100644
--- a/src/Pipes/Stopwatch.hs
+++ /dev/null
@@ -1,40 +0,0 @@
-{-# LANGUAGE FunctionalDependencies #-}
-{-# LANGUAGE MultiParamTypeClasses #-}
-{-# LANGUAGE RankNTypes #-}
-{-# LANGUAGE TemplateHaskell #-}
-
-module Pipes.Stopwatch where
-
-import Control.Lens
-import Control.Monad.Trans
-import qualified Pipes as P
-import qualified System.Clock as C
-
--- | Record of epoch time and elapsed time
-data Stopwatch = Stopwatch
-    { stopwatchEpochTime :: {-# UNPACK #-}!C.TimeSpec -- | time since application epoch
-    , stopwatchLapTime :: {-# UNPACK #-}!C.TimeSpec -- | time since last frame
-    } deriving (Eq, Show)
-
-makeFields ''Stopwatch
-
--- | Create a stopwatch pipe using first yielded time as the application epoch
--- and previous laptime
-stopwatch :: MonadIO io => P.Pipe () Stopwatch io ()
-stopwatch = do
-    P.await
-    t <- liftIO $ C.getTime C.ThreadCPUTime
-    P.yield $ Stopwatch startTime startTime
-    stopwatch' t t
-  where
-    startTime = C.TimeSpec 0 0
-
--- | Create a stopwatch Pipe using a given application epoch time and previous laptime
-stopwatch' :: MonadIO io => C.TimeSpec -> C.TimeSpec -> P.Pipe () Stopwatch io ()
-stopwatch' epoch prev = go prev
-  where
-    go prev' = do
-        () <- P.await
-        t <- liftIO $ C.getTime C.ThreadCPUTime
-        P.yield $ Stopwatch (C.diffTimeSpec t epoch) (C.diffTimeSpec t prev')
-        go t