diff -r 47fdd4f40d00 -r 8a6cac7c7247 src/HOL/MicroJava/JVM/JVMDefensive.thy
--- a/src/HOL/MicroJava/JVM/JVMDefensive.thy	Sun Nov 02 17:39:52 2014 +0100
+++ b/src/HOL/MicroJava/JVM/JVMDefensive.thy	Sun Nov 02 17:58:35 2014 +0100
@@ -2,7 +2,7 @@
     Author:     Gerwin Klein
 *)
 
-header {* \isaheader{A Defensive JVM} *}
+section {* A Defensive JVM *}
 
 theory JVMDefensive
 imports JVMExec