diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2015 Pedro Tacla Yamada
+Copyright (c) 2016 Pedro Tacla Yamada
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/src/Main.hs b/src/Main.hs
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -1,7 +1,8 @@
 module Main
   where
 
-import           Control.Applicative                   ((<$>))
+import           Control.Applicative                   ((*>), (<$>))
+import           Control.Concurrent.Async
 import           Control.Monad                         (unless)
 import qualified Data.ByteString.Char8                 as ByteString
 import           Data.Conduit
@@ -11,6 +12,7 @@
 import           Data.List
 import           Data.List.Utils
 import           Data.Maybe
+import           Data.Time
 import           Distribution.PackageDescription
 import           Distribution.PackageDescription.Parse
 import           System.Console.ANSI
@@ -74,7 +76,12 @@
         case ec of
             ExitSuccess -> return ()
             f -> exitWith f
+    start <- getCurrentTime
     ec <- prettyRunCommand "stack build"
+    hSetSGR stderr [SetColor Foreground Vivid Black]
+    fdiff <- getDiffTime start
+    hPutStrLn stderr ("stack build took " ++ show fdiff ++ "ms")
+    hSetSGR stderr [Reset]
     case ec of
         ExitSuccess -> do
             let cmd = "stack exec " ++ name ++ " -- " ++ join " " as
@@ -85,14 +92,25 @@
             ec' <- waitForProcess ph
             exitWith ec'
         f -> exitWith f
+  where
+    getDiffTime :: UTCTime -> IO Integer
+    getDiffTime start = do
+        now <- getCurrentTime
+        let diff :: Double
+            diff = fromRational (toRational (diffUTCTime now start))
+            fdiff = floor (diff * 1000)
+        return fdiff
 
+
 prettyRunCommand :: String -> IO ExitCode
 prettyRunCommand cmd = do
+    hSetBuffering stderr LineBuffering
     logCommand cmd
     (Inherited, out, err, cph) <- streamingProcess (shell cmd)
-    out =$= Conduit.Binary.lines $$ Conduit.List.mapM_ putLineGray
-    err =$= Conduit.Binary.lines $$ Conduit.List.mapM_ putLineRed
-    waitForStreamingProcess cph
+    runConcurrently $
+        Concurrently (out $$ (Conduit.Binary.lines =$ Conduit.List.mapM_ putLineGray)) *>
+        Concurrently (err $$ (Conduit.Binary.lines =$ Conduit.List.mapM_ putLineRed)) *>
+        Concurrently (waitForStreamingProcess cph)
   where
     putLineSGR sgr b = do
         hSetSGR stderr sgr
diff --git a/stack-run.cabal b/stack-run.cabal
--- a/stack-run.cabal
+++ b/stack-run.cabal
@@ -1,5 +1,5 @@
 name:                stack-run
-version:             0.1.0.6
+version:             0.1.0.7
 synopsis:            An equivalent to cabal run for stack.
 description:         Finds the project root, compiles your code and runs the
                      first or set default executable. It's a shorthand for
@@ -10,7 +10,7 @@
 license-file:        LICENSE
 author:              Pedro Tacla Yamada
 maintainer:          tacla.yamada@gmail.com
-copyright:           Copyright (c) 2015 Pedro Tacla Yamada
+copyright:           Copyright (c) 2016 Pedro Tacla Yamada
 category:            Development
 build-type:          Simple
 extra-source-files:  README.md
@@ -23,6 +23,7 @@
   build-depends:       Cabal
                      , MissingH
                      , ansi-terminal >= 0.6
+                     , async
                      , base >=4 && <5
                      , bytestring >= 0.10
                      , conduit > 1.1 && < 1.3
@@ -30,8 +31,10 @@
                      , directory
                      , filepath
                      , projectroot >= 0.2
+                     , time >= 1.5.0.1
   hs-source-dirs:      src
   default-language:    Haskell2010
+  ghc-options:       -threaded
 
 source-repository head
   type:     git