diff --git a/hakyll.cabal b/hakyll.cabal
--- a/hakyll.cabal
+++ b/hakyll.cabal
@@ -1,5 +1,5 @@
 Name:    hakyll
-Version: 4.5.0.0
+Version: 4.5.0.1
 
 Synopsis: A static website compiler library
 Description:
diff --git a/src/Hakyll/Commands.hs b/src/Hakyll/Commands.hs
--- a/src/Hakyll/Commands.hs
+++ b/src/Hakyll/Commands.hs
@@ -15,7 +15,9 @@
 
 --------------------------------------------------------------------------------
 import           System.Exit                (exitWith, ExitCode)
+import           System.IO.Error            (catchIOError)
 import           Control.Applicative
+import           Control.Monad              (void)
 import           Control.Concurrent
 
 --------------------------------------------------------------------------------