--- a/src/HOL/MicroJava/J/Value.thy	Wed Feb 20 17:30:46 2002 +0100
+++ b/src/HOL/MicroJava/J/Value.thy	Thu Feb 21 09:54:08 2002 +0100
@@ -4,7 +4,7 @@
     Copyright   1999 Technische Universitaet Muenchen
 *)
 
-header "Java Values"
+header {* \isaheader{Java Values} *}
 
 theory Value = Type: