diff --git a/Utility/QuickCheck.hs b/Utility/QuickCheck.hs
index 369ef199d4..0181ea9502 100644
--- a/Utility/QuickCheck.hs
+++ b/Utility/QuickCheck.hs
@@ -16,8 +16,10 @@ module Utility.QuickCheck
 import Test.QuickCheck as X
 import Data.Time.Clock.POSIX
 import System.Posix.Types
+#if ! MIN_VERSION_QuickCheck(2,8,2)
 import qualified Data.Map as M
 import qualified Data.Set as S
+#endif
 import Control.Applicative
 import Prelude