diff --git a/AVar.cabal b/AVar.cabal
--- a/AVar.cabal
+++ b/AVar.cabal
@@ -1,5 +1,5 @@
 Name:                   AVar
-Version:                0.0.1
+Version:                0.0.2
 Category:               Concurrency
 Synopsis:               Mutable variables with Exception handling and concurrency support.
 Description:            AVars emulate mutable variables, by providing a queue based interface to interacting with the variable. Each variable runs a 'handler' function, which reads requests from a queue and processes them one by one. They can be used in concurrent systems safely, and should handle exceptions thrown by modifying functions gracefully.
diff --git a/Data/AVar.hs b/Data/AVar.hs
--- a/Data/AVar.hs
+++ b/Data/AVar.hs
@@ -24,7 +24,7 @@
 import Control.Concurrent.MVar
 import Control.Concurrent.Chan
 import qualified Control.Exception as E
-import System
+import System.Environment
 
 -- * Types