diff --git a/Control/Workflow/Stat.hs b/Control/Workflow/Stat.hs
--- a/Control/Workflow/Stat.hs
+++ b/Control/Workflow/Stat.hs
@@ -22,13 +22,14 @@
 import Data.IORef
 import Data.RefSerialize
 import Control.Workflow.IDynamic
+
 import Control.Monad(replicateM)
 
 import qualified Data.ByteString.Lazy.Char8 as B hiding (index)
 import  Data.ByteString.Char8(findSubstring)
 import Control.Workflow.IDynamic
 import Control.Concurrent
-import Control.Exception(bracket,SomeException)
+import Control.Exception(catch,bracket,SomeException)
 import System.IO.Error
 
 import System.Directory
diff --git a/Workflow.cabal b/Workflow.cabal
--- a/Workflow.cabal
+++ b/Workflow.cabal
@@ -1,5 +1,5 @@
 name: Workflow
-version: 0.7.0.3
+version: 0.7.0.4
 cabal-version: >= 1.6
 build-type: Simple
 license: BSD3