diff --git a/src/System/Process/Typed.hs b/src/System/Process/Typed.hs
--- a/src/System/Process/Typed.hs
+++ b/src/System/Process/Typed.hs
@@ -603,7 +603,9 @@
 --
 -- @since 0.2.10.0
 mkPipeStreamSpec :: (ProcessConfig () () () -> Handle -> IO (a, IO ()))
+                 -- ^
                  -> StreamSpec streamType a
+                 -- ^
 mkPipeStreamSpec f = mkStreamSpec P.CreatePipe $ \pc mh ->
     case mh of
         Just h -> f pc h
diff --git a/typed-process.cabal b/typed-process.cabal
--- a/typed-process.cabal
+++ b/typed-process.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           typed-process
-version:        0.2.10.0
+version:        0.2.10.1
 synopsis:       Run external processes, with strong typing of streams
 description:    Please see the tutorial at <https://github.com/fpco/typed-process#readme>
 category:       System