diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,20 +2,36 @@
 
 #### Upcoming
 
+#### v0.2.0.1
+
+*Revisions*
+
+* Fixed a bug causing prettifying to fail across filesystem boundaries. ([#14](https://github.com/hjwylde/omnifmt/issues/14))
+
 #### v0.2.0.0
 
 *Major*
+
 * Removed `checkFileExists` from the pipeline (moved to `handle`). ([#12](https://github.com/hjwylde/omnifmt/issues/12))
 
 *Revisions*
+
 * Changed path outputs to be relative to the root directory. ([#12](https://github.com/hjwylde/omnifmt/issues/12))
 
+#### v0.1.0.1
+
+*Revisions*
+
+* Fixed a bug causing prettifying to fail across filesystem boundaries. ([#14](https://github.com/hjwylde/omnifmt/issues/14))
+
 #### v0.1.0.0
 
 *Major*
+
 * Extracted omnifmt out from git@github.com:hjwylde/git-fmt. ([#1](https://github.com/hjwylde/omnifmt/issues/1))
 
 *Revisions*
+
 * Fixed a bug causing the program to hang when not in the root directory. ([#7](https://github.com/hjwylde/omnifmt/issues/7))
 * Fixed a bug where output files could be created outside of the temp directory. ([#11](https://github.com/hjwylde/omnifmt/issues/11))
 * Fixed a bug that omitted searching the drive for a config file. ([#8](https://github.com/hjwylde/omnifmt/issues/8))
diff --git a/omnifmt.cabal b/omnifmt.cabal
--- a/omnifmt.cabal
+++ b/omnifmt.cabal
@@ -1,5 +1,5 @@
 name:           omnifmt
-version:        0.2.0.0
+version:        0.2.0.1
 
 author:         Henry J. Wylde
 maintainer:     public@hjwylde.com
diff --git a/src/Omnifmt/Pipes.hs b/src/Omnifmt/Pipes.hs
--- a/src/Omnifmt/Pipes.hs
+++ b/src/Omnifmt/Pipes.hs
@@ -36,6 +36,8 @@
 import qualified Data.Text        as T
 import           Data.Tuple.Extra (fst3)
 
+import GHC.IO.Exception (IOErrorType (..))
+
 import Omnifmt.Config
 import Omnifmt.Process
 
@@ -45,6 +47,7 @@
 import System.Directory.Extra
 import System.Exit
 import System.FilePath
+import System.IO.Error
 
 -- | A status for a file going through the omnifmt pipeline.
 data Status = Unknown       -- ^ The file has not been processed.
@@ -125,7 +128,11 @@
 --   This function updates the status to 'Prettified'.
 commit :: MonadIO m => Pipe (Status, FilePath, FilePath) (Status, FilePath, FilePath) m ()
 commit = select [Ugly] $ \(_, uglyFilePath, prettyFilePath) -> do
-    liftIO $ renameFile prettyFilePath uglyFilePath
+    -- Try move the file, but if it's across a filesystem boundary then we may need to copy instead
+    liftIO $ renameFile prettyFilePath uglyFilePath `catchIOError` \e ->
+        if ioeGetErrorType e == UnsupportedOperation
+            then copyFile prettyFilePath uglyFilePath >> removeFile prettyFilePath
+            else ioError e
 
     return (Prettified, uglyFilePath, prettyFilePath)