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-rw-r--r--libraries/base/tests/CatEntail.hs4
1 files changed, 2 insertions, 2 deletions
diff --git a/libraries/base/tests/CatEntail.hs b/libraries/base/tests/CatEntail.hs
index c980a2db73..30023ad5b8 100644
--- a/libraries/base/tests/CatEntail.hs
+++ b/libraries/base/tests/CatEntail.hs
@@ -2,11 +2,11 @@
{-# LANGUAGE TypeOperators, KindSignatures #-}
module CatEntail where
import Prelude hiding (id, (.))
-import GHC.Exts (Constraint)
+import Data.Kind
import Control.Category
-- One dictionary to rule them all.
-data Dict :: Constraint -> * where
+data Dict :: Constraint -> Type where
Dict :: ctx => Dict ctx
-- Entailment.