diff -r 2df6ad1dbd66 -r 2a526bd279ed src/HOL/Cardinals/Wellorder_Extension.thy
--- a/src/HOL/Cardinals/Wellorder_Extension.thy	Thu Jan 16 16:20:17 2014 +0100
+++ b/src/HOL/Cardinals/Wellorder_Extension.thy	Thu Jan 16 16:33:19 2014 +0100
@@ -5,7 +5,7 @@
 header {* Extending Well-founded Relations to Wellorders *}
 
 theory Wellorder_Extension
-imports "~~/src/HOL/Library/Zorn" Order_Union
+imports Zorn Order_Union
 begin
 
 subsection {* Extending Well-founded Relations to Wellorders *}