diff --git a/ats-storable.cabal b/ats-storable.cabal
--- a/ats-storable.cabal
+++ b/ats-storable.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.18
 name: ats-storable
-version: 0.3.0.3
+version: 0.3.0.4
 license: BSD3
 license-file: LICENSE
 copyright: Copyright: (c) 2018 Vanessa McHale
@@ -57,7 +57,6 @@
                       DeriveGeneric
     extra-libraries:
         storable
-    -- extra-lib-dirs: ./dist-newstyle/lib
     ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall
     build-depends:
         base -any,
diff --git a/atspkg.dhall b/atspkg.dhall
--- a/atspkg.dhall
+++ b/atspkg.dhall
@@ -1,9 +1,9 @@
 let prelude = https://raw.githubusercontent.com/vmchale/atspkg/master/ats-pkg/dhall/atspkg-prelude.dhall
 
-in prelude.default ⫽ 
+in prelude.default ⫽
   { libraries =
     [
-      prelude.lib ⫽ 
+      prelude.lib ⫽
       { name = "storable"
       , src = [ "ats-src/types.dats" ]
       , libTarget = "dist-newstyle/lib/libstorable.a"
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
@@ -24,6 +24,7 @@
     , AsCString (..)
     ) where
 
+import Data.Bool (bool)
 import           Control.Composition
 import qualified Data.ByteString       as BS
 import qualified Data.ByteString.Lazy  as BSL