diff --git a/jvm.cabal b/jvm.cabal
--- a/jvm.cabal
+++ b/jvm.cabal
@@ -1,5 +1,5 @@
 name:                jvm
-version:             0.4.0
+version:             0.4.0.1
 synopsis:            Call JVM methods from Haskell.
 description:         Please see README.md.
 homepage:            http://github.com/tweag/inline-java/tree/master/jvm#readme
diff --git a/src/Language/Java.hs b/src/Language/Java.hs
--- a/src/Language/Java.hs
+++ b/src/Language/Java.hs
@@ -45,6 +45,7 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE PolyKinds #-}
 {-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE StaticPointers #-}
 {-# LANGUAGE TypeFamilies #-}
 {-# LANGUAGE TemplateHaskell #-}
 {-# LANGUAGE UndecidableInstances #-}