1 files changed, 2 insertions, 1 deletions

diff --git a/src/Data/JLD/Compaction/Global.hs b/src/Data/JLD/Compaction/Global.hs
index 76b2db7..e4938e8 100644
--- a/src/Data/JLD/Compaction/Global.hs
+++ b/src/Data/JLD/Compaction/Global.hs
@@ -7,7 +7,8 @@ import Data.JLD.Options (JLDVersion (..))
 
 type JLDCompactionT e m = ReaderT JLDCompactionEnv (ExceptT (JLDError e) m)
 
-newtype JLDCompactionEnv = JLDCompactionEnv
+data JLDCompactionEnv = JLDCompactionEnv
     { jldCompactionEnvProcessingMode :: JLDVersion
+    , jldCompactionCompactArrays :: Bool
     }
     deriving (Show)