diff --git a/changelog b/changelog
--- a/changelog
+++ b/changelog
@@ -1,3 +1,8 @@
+0.0.6
+
+* Change `inlinePerformIO` to `unsafePerformIO`.
+* add `runGetFile`.
+
 0.0.5
 
 * Remove {-# LANGUAGE Safe #-} because validation-0.5.2 removed Safe.
diff --git a/src/Data/Tickle/Get.hs b/src/Data/Tickle/Get.hs
--- a/src/Data/Tickle/Get.hs
+++ b/src/Data/Tickle/Get.hs
@@ -101,6 +101,7 @@
 , _Done
   -- ** Run Get parser
 , runGet
+, runGetFile
 , (.>>)
 , (<<.)
 , runGetIncremental
@@ -146,8 +147,7 @@
 import Data.Bits((.|.), (.&.), shiftL, shiftR)
 import Data.Bool(Bool(False, True), (&&), not, otherwise)
 import qualified Data.ByteString as B(ByteString, concat, append, length, splitAt, empty, null, break, drop)
-import qualified Data.ByteString.Internal as BI
-import qualified Data.ByteString.Lazy as L(ByteString, toChunks, fromChunks)
+import qualified Data.ByteString.Lazy as L(ByteString, toChunks, fromChunks, readFile)
 import qualified Data.ByteString.Lazy.Internal as LI(ByteString(Chunk, Empty))
 import qualified Data.ByteString.Unsafe as BU(unsafeDrop, unsafeTake, unsafeHead, unsafeIndex, unsafeUseAsCString)
 import Data.Either(Either(Left, Right), either)
@@ -170,6 +170,7 @@
 import Data.Traversable(Traversable(traverse))
 import Data.Tuple(uncurry)
 import Foreign(Ptr, castPtr, Storable(peek), sizeOf, alloca, poke)
+import System.FilePath(FilePath)
 import System.IO.Unsafe(unsafePerformIO)
 #if defined(__GLASGOW_HASKELL__) && !defined(__HADDOCK__)
 import GHC.Word(Word, Word8, Word16(W16#), Word32(W32#), Word64(W64#))
@@ -1207,7 +1208,7 @@
   -> (Ptr a -> IO a)
   -> Get () a
 readNWith n f =
-  readN n (\s -> BI.inlinePerformIO (BU.unsafeUseAsCString s (f . castPtr)))
+  readN n (\s -> unsafePerformIO (BU.unsafeUseAsCString s (f . castPtr)))
 {-# INLINE readNWith #-}
 
 data Decoder e a =
@@ -1422,6 +1423,13 @@
         _RunGetFail # (p, e)
   in feedAll (runGetIncremental g) b
     
+runGetFile ::
+  Get e a
+  -> FilePath
+  -> IO (RunGetResult e a)
+runGetFile g =
+  fmap (runGet g) . L.readFile
+
 pushChunk ::
   Decoder e a
   -> B.ByteString
diff --git a/tickle.cabal b/tickle.cabal
--- a/tickle.cabal
+++ b/tickle.cabal
@@ -1,5 +1,5 @@
 name:               tickle
-version:            0.0.5
+version:            0.0.6
 license:            BSD3
 license-file:       LICENSE
 author:             Tony Morris <ʇǝu˙sıɹɹoɯʇ@ןןǝʞsɐɥ>
@@ -38,6 +38,7 @@
                     , transformers >= 0.3.0.0
                     , mtl >= 2.1
                     , validation >= 0.3.4
+                    , filepath >= 1.4
                     
   ghc-options:
                     -Wall