diff -r a75d71c73362 -r 9f90ac19e32b src/HOL/Library/Order_Relation.thy
--- a/src/HOL/Library/Order_Relation.thy	Thu Jun 26 10:06:54 2008 +0200
+++ b/src/HOL/Library/Order_Relation.thy	Thu Jun 26 10:07:01 2008 +0200
@@ -5,7 +5,7 @@
 header {* Orders as Relations *}
 
 theory Order_Relation
-imports ATP_Linkup Hilbert_Choice
+imports Plain Hilbert_Choice ATP_Linkup
 begin
 
 text{* This prelude could be moved to theory Relation: *}