diff -r a09ec6daaa19 -r 91ea607a34d8 src/HOL/Nominal/Examples/CK_Machine.thy
--- a/src/HOL/Nominal/Examples/CK_Machine.thy	Thu Sep 11 19:26:59 2014 +0200
+++ b/src/HOL/Nominal/Examples/CK_Machine.thy	Thu Sep 11 19:32:36 2014 +0200
@@ -81,7 +81,7 @@
 
 section {* Evaluation Contexts *}
 
-datatype_new ctx = 
+datatype ctx = 
     Hole ("\<box>")  
   | CAPPL "ctx" "lam"
   | CAPPR "lam" "ctx"