diff --git a/System/Linux/Proc.hs b/System/Linux/Proc.hs
--- a/System/Linux/Proc.hs
+++ b/System/Linux/Proc.hs
@@ -3,8 +3,8 @@
 module System.Linux.Proc (
 -- * Types
     ProcessName,  
-    ProcessState,
-    ProcStatus,
+    ProcessState (..),
+    ProcStatus (..),
 
 -- * Methods
     procGetProcessDirs,
diff --git a/proc.cabal b/proc.cabal
--- a/proc.cabal
+++ b/proc.cabal
@@ -1,5 +1,5 @@
 name:			proc
-version:		0.0.1
+version:		0.0.2
 Cabal-Version:	>= 1.8
 license:		GPL-3
 license-file:	LICENSE