diff -r 9537bf1c4853 -r 5b7a9633cfa8 src/HOL/NanoJava/TypeRel.thy
--- a/src/HOL/NanoJava/TypeRel.thy	Sun Nov 02 18:21:14 2014 +0100
+++ b/src/HOL/NanoJava/TypeRel.thy	Sun Nov 02 18:21:45 2014 +0100
@@ -2,7 +2,7 @@
     Author:     David von Oheimb, Technische Universitaet Muenchen
 *)
 
-header "Type relations"
+section "Type relations"
 
 theory TypeRel
 imports Decl