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-rw-r--r--src/Utility/QuickCheck.hs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/Utility/QuickCheck.hs b/src/Utility/QuickCheck.hs
index 54200d3f..cd408ddc 100644
--- a/src/Utility/QuickCheck.hs
+++ b/src/Utility/QuickCheck.hs
@@ -19,6 +19,7 @@ import System.Posix.Types
import qualified Data.Map as M
import qualified Data.Set as S
import Control.Applicative
+import Prelude
instance (Arbitrary k, Arbitrary v, Eq k, Ord k) => Arbitrary (M.Map k v) where
arbitrary = M.fromList <$> arbitrary