diff --git a/ByteUnits.hs b/ByteUnits.hs
deleted file mode 100644
--- a/ByteUnits.hs
+++ /dev/null
@@ -1,30 +0,0 @@
-module ByteUnits where
-
-import Safe
-
-data ByteUnit = Bytes | KiloBytes | MegaBytes | GigaBytes | TeraBytes | PetaBytes | ExaBytes deriving (Show, Eq)
-
-getUnits :: ByteUnit -> Float -> Float
-getUnits bytesUnit bytes = case bytesUnit of
-  Bytes -> bytes
-  KiloBytes -> bytes / (1024 ** 1)
-  MegaBytes -> bytes / (1024 ** 2)
-  GigaBytes -> bytes / (1024 ** 3)
-  TeraBytes -> bytes / (1024 ** 4)
-  PetaBytes -> bytes / (1024 ** 4)
-  ExaBytes  -> bytes / (1024 ** 5)
-
--- | Rounds up to the highest unit provided it's > 1
---
--- >>> getAppropriateUnits 1024
--- (KiloBytes,1.0)
---
--- >>> getAppropriateUnits (3.5 * 1024* 1024)
--- (MegaBytes,3.5)
-getAppropriateUnits :: Float -> (ByteUnit, Float)
-getAppropriateUnits bytes = do
-  let units = fmap (\bu -> (bu, getUnits bu bytes)) [Bytes, KiloBytes, MegaBytes, GigaBytes, TeraBytes, PetaBytes, ExaBytes]
-  let appropriateUnits = filter (((<=) 1.0) . snd)  units
-  case (lastMay appropriateUnits) of
-    Just (x) -> x
-    Nothing -> (Bytes, bytes)
diff --git a/byteunits.cabal b/byteunits.cabal
--- a/byteunits.cabal
+++ b/byteunits.cabal
@@ -1,5 +1,5 @@
 name:                byteunits
-version:             0.2.0.0
+version:             0.2.0.1
 description:         Human friendly conversion between byte units (KB, MB, GB...)
 synopsis:            Human friendly conversion between byte units (KB, MB, GB...)
 license:             BSD3
@@ -15,9 +15,9 @@
   location: https://github.com/chrissound/byteunits
 
 library
-  hs-source-dirs: .
+  hs-source-dirs: src
   default-language: Haskell2010
-  exposed-modules: ByteUnits
+  exposed-modules: Data.ByteUnits
   build-depends:       base >=4.9 && <4.10
                        , safe == 0.3.15
   default-language:    Haskell2010
diff --git a/src/Data/ByteUnits.hs b/src/Data/ByteUnits.hs
new file mode 100644
--- /dev/null
+++ b/src/Data/ByteUnits.hs
@@ -0,0 +1,30 @@
+module Data.ByteUnits where
+
+import Safe
+
+data ByteUnit = Bytes | KiloBytes | MegaBytes | GigaBytes | TeraBytes | PetaBytes | ExaBytes deriving (Show, Eq)
+
+getUnits :: ByteUnit -> Float -> Float
+getUnits bytesUnit bytes = case bytesUnit of
+  Bytes -> bytes
+  KiloBytes -> bytes / (1024 ** 1)
+  MegaBytes -> bytes / (1024 ** 2)
+  GigaBytes -> bytes / (1024 ** 3)
+  TeraBytes -> bytes / (1024 ** 4)
+  PetaBytes -> bytes / (1024 ** 4)
+  ExaBytes  -> bytes / (1024 ** 5)
+
+-- | Rounds up to the highest unit provided it's > 1
+--
+-- >>> getAppropriateUnits 1024
+-- (KiloBytes,1.0)
+--
+-- >>> getAppropriateUnits (3.5 * 1024* 1024)
+-- (MegaBytes,3.5)
+getAppropriateUnits :: Float -> (ByteUnit, Float)
+getAppropriateUnits bytes = do
+  let units = fmap (\bu -> (bu, getUnits bu bytes)) [Bytes, KiloBytes, MegaBytes, GigaBytes, TeraBytes, PetaBytes, ExaBytes]
+  let appropriateUnits = filter (((<=) 1.0) . snd)  units
+  case (lastMay appropriateUnits) of
+    Just (x) -> x
+    Nothing -> (Bytes, bytes)
diff --git a/tests/Tests.hs b/tests/Tests.hs
--- a/tests/Tests.hs
+++ b/tests/Tests.hs
@@ -1,7 +1,7 @@
 module Main where
 
 import Test.QuickCheck (quickCheck)
-import ByteUnits
+import Data.ByteUnits
 
 main = do
   quickCheck (getUnits KiloBytes 1024 == 1.0)