--- doc/examples/ginac-examples.texi.orig	2008-03-26 21:08:16.000000000 +0900
+++ doc/examples/ginac-examples.texi	2008-04-06 21:38:31.000000000 +0900
@@ -11,6 +11,12 @@
 @parindent=0pt
 @end iftex
 @c %**end of header
+
+@dircategory Mathematics
+@direntry
+* ginac-examples: (ginac).          GiNaC Examples.
+@end direntry
+
 @ifnottex
 @node Top
 @end ifnottex