diff --git a/scotty-fay.cabal b/scotty-fay.cabal
--- a/scotty-fay.cabal
+++ b/scotty-fay.cabal
@@ -1,5 +1,5 @@
 name:           scotty-fay
-version:        0.0.2
+version:        0.1.0
 build-type:     Simple
 cabal-version:  >= 1.10
 
@@ -44,20 +44,25 @@
 test-suite scotty-fay-tests
   type:                 exitcode-stdio-1.0
   main-is:              Main.hs
-  hs-source-dirs:       test
+  hs-source-dirs:       src test
   default-language:     Haskell2010
   ghc-options:          -Wall
   default-extensions:   OverloadedStrings,
                         Rank2Types
   build-depends:        base,
-                        scotty-fay,
+                        scotty >= 0.6.0 && < 0.7.0,
+                        fay    >= 0.18  && < 0.19,
+                        fay-jquery,
+                        bytestring,
+                        data-default,
+                        http-types,
+                        wai,
+                        transformers,
+                        text,
+                        directory,
+                        filepath,
                         wai-test,
                         test-framework,
                         test-framework-hunit,
-                        HUnit,
-                        directory,
-                        wai,
-                        transformers,
-                        http-types,
-                        scotty
+                        HUnit
 
diff --git a/src/Web/Scotty/Fay.hs b/src/Web/Scotty/Fay.hs
--- a/src/Web/Scotty/Fay.hs
+++ b/src/Web/Scotty/Fay.hs
@@ -1,6 +1,5 @@
 module Web.Scotty.Fay
     ( module Web.Scotty.Fay.Config
-    , compileFile
     , serveFay
     , serveFay'
     ) where
@@ -50,4 +49,3 @@
                     Error err        -> raiseErr err
                     FileNotFound msg -> notFoundMsg msg
             Nothing -> notFoundMsg "scotty-fay: requested path is invalid"
-    where
diff --git a/src/Web/Scotty/Fay/Internal.hs b/src/Web/Scotty/Fay/Internal.hs
--- a/src/Web/Scotty/Fay/Internal.hs
+++ b/src/Web/Scotty/Fay/Internal.hs
@@ -34,15 +34,15 @@
         f acc dir = do
             dirs <- acc
             exists <- doesDirectoryExist dir
-            if exists
+            if not exists
                 then return (dir : dirs)
                 else return dirs
 
 nonExistentWarning :: [FilePath] -> String
 nonExistentWarning dirs = concat
-    [ "The following include dirs:"
+    [ "The following include dirs:\n\t"
     , showAll dirs
-    , "do not exist. scotty-fay might not work very well."
+    , "\ndo not exist. scotty-fay might not work very well."
     ]
     where showAll = concat . intersperse "\n\t"
 
diff --git a/test/Main.hs b/test/Main.hs
--- a/test/Main.hs
+++ b/test/Main.hs
@@ -12,6 +12,8 @@
 import qualified Test.HUnit.Base as H
 import System.Directory
 
+import Web.Scotty.Fay.Internal
+
 main :: IO ()
 main = do
     dir <- getCurrentDirectory
@@ -126,3 +128,8 @@
 test_configuringBasePath =
     assertEq "/js" $
         (configBasePath . buildConfig $ (under "/js" . from "src"))
+
+test_getNonExistent :: H.Assertion
+test_getNonExistent = do
+    results <- getNonExistent ["non-existent2", "non-existent1", "src"]
+    assertSameElems ["non-existent1", "non-existent2"] results