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-rw-r--r--libraries/base/GHC/IOArray.hs5
1 files changed, 2 insertions, 3 deletions
diff --git a/libraries/base/GHC/IOArray.hs b/libraries/base/GHC/IOArray.hs
index 6c925d3b2f..f089cad933 100644
--- a/libraries/base/GHC/IOArray.hs
+++ b/libraries/base/GHC/IOArray.hs
@@ -1,5 +1,5 @@
{-# LANGUAGE Unsafe #-}
-{-# LANGUAGE NoImplicitPrelude, AutoDeriveTypeable, RoleAnnotations #-}
+{-# LANGUAGE NoImplicitPrelude, RoleAnnotations #-}
{-# OPTIONS_GHC -funbox-strict-fields #-}
{-# OPTIONS_HADDOCK hide #-}
@@ -27,7 +27,6 @@ module GHC.IOArray (
import GHC.Base
import GHC.IO
import GHC.Arr
-import Data.Typeable.Internal
-- ---------------------------------------------------------------------------
-- | An 'IOArray' is a mutable, boxed, non-strict array in the 'IO' monad.
@@ -39,7 +38,7 @@ import Data.Typeable.Internal
--
--
-newtype IOArray i e = IOArray (STArray RealWorld i e) deriving( Typeable )
+newtype IOArray i e = IOArray (STArray RealWorld i e)
-- index type should have a nominal role due to Ix class. See also #9220.
type role IOArray nominal representational