diff -r 3ce619d8d432 -r 9d7ea903e877 src/Pure/Concurrent/par_list.ML
--- a/src/Pure/Concurrent/par_list.ML	Thu Dec 04 23:46:20 2008 +0100
+++ b/src/Pure/Concurrent/par_list.ML	Thu Dec 04 23:46:20 2008 +0100
@@ -31,7 +31,7 @@
   if Future.enabled () then
     let
       val group = TaskQueue.new_group ();
-      val futures = map (fn x => Future.future (SOME group) [] true (fn () => f x)) xs;
+      val futures = map (fn x => Future.fork_group group (fn () => f x)) xs;
       val _ = List.app (ignore o Future.join_result) futures;
     in Future.join_results futures end
   else map (Exn.capture f) xs;