1 files changed, 2 insertions, 1 deletions
diff --git a/Maximize.hs b/Maximize.hs
index 2322c54..db9d265 100644
--- a/Maximize.hs
+++ b/Maximize.hs
@@ -1,4 +1,5 @@
-{-# LANGUAGE FlexibleInstances #-}
+{-# OPTIONS_GHC -fglasgow-exts #-} -- For deriving Data/Typeable
+{-# LANGUAGE FlexibleContexts, FlexibleInstances, MultiParamTypeClasses, TypeSynonymInstances #-}
 
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