diff --git a/Codec/BMP.hs b/Codec/BMP.hs
--- a/Codec/BMP.hs
+++ b/Codec/BMP.hs
@@ -71,7 +71,6 @@
 import Codec.BMP.BitmapInfoV4
 import Codec.BMP.BitmapInfoV5
 import System.IO
-import Data.ByteString          as BS
 import Data.ByteString.Lazy     as BSL
 import Data.Binary
 import Data.Binary.Get
@@ -176,7 +175,7 @@
          else Right $ BMP 
                 { bmpFileHeader         = fileHeader
                 , bmpBitmapInfo         = imageHeader
-                , bmpRawImageData       = BS.concat $ BSL.toChunks bufImage }
+                , bmpRawImageData       = BSL.toStrict bufImage }
 
 
 -- Writing --------------------------------------------------------------------
diff --git a/bmp.cabal b/bmp.cabal
--- a/bmp.cabal
+++ b/bmp.cabal
@@ -1,5 +1,5 @@
 Name:                bmp
-Version:             1.2.6.2
+Version:             1.2.6.3
 License:             MIT
 License-file:        LICENSE
 Author:              Ben Lippmeier