diff -r a09ec6daaa19 -r 91ea607a34d8 src/HOL/Nominal/Examples/Pattern.thy
--- a/src/HOL/Nominal/Examples/Pattern.thy	Thu Sep 11 19:26:59 2014 +0200
+++ b/src/HOL/Nominal/Examples/Pattern.thy	Thu Sep 11 19:32:36 2014 +0200
@@ -38,7 +38,7 @@
 where
   "\<lambda>x:T. t \<equiv> Abs T x t"
 
-datatype_new pat =
+datatype pat =
     PVar name ty
   | PTuple pat pat  ("(1'\<langle>\<langle>_,/ _'\<rangle>\<rangle>)")