diff --git a/ats-storable.cabal b/ats-storable.cabal
--- a/ats-storable.cabal
+++ b/ats-storable.cabal
@@ -1,5 +1,5 @@
 name:                ats-storable
-version:             0.2.0.2
+version:             0.2.0.3
 synopsis:            Marshal ATS types into Haskell
 description:         Facilities for sharing types between ATS and Haskell
 homepage:            https://github.com//ats-generic#readme
diff --git a/src/Foreign/Storable/ATS.hs b/src/Foreign/Storable/ATS.hs
--- a/src/Foreign/Storable/ATS.hs
+++ b/src/Foreign/Storable/ATS.hs
@@ -9,6 +9,7 @@
 module Foreign.Storable.ATS
     ( ATSStorable (..)
     , AsCString (..)
+    , Indexed (..)
     ) where
 
 import           Control.Composition