diff --git a/hw-prim-bits.cabal b/hw-prim-bits.cabal
--- a/hw-prim-bits.cabal
+++ b/hw-prim-bits.cabal
@@ -1,5 +1,5 @@
 name:                   hw-prim-bits
-version:                0.1.0.3
+version:                0.1.0.4
 synopsis:               Primitive support for bit manipulation
 description:            Please see README.md
 homepage:               https://github.com/githubuser/hw-prim-bits#readme
diff --git a/src/HaskellWorks/Prim/Bits.hs b/src/HaskellWorks/Prim/Bits.hs
--- a/src/HaskellWorks/Prim/Bits.hs
+++ b/src/HaskellWorks/Prim/Bits.hs
@@ -1,5 +1,7 @@
 module HaskellWorks.Prim.Bits
-  ( module X
+  ( Pdep(..)
+  , Pext(..)
+  , module X
   ) where
 
 import Data.Word