--- a/doc/book/en/B0-data-model.en.txt	Tue Dec 23 13:15:23 2008 -0800
+++ b/doc/book/en/B0-data-model.en.txt	Tue Dec 23 13:20:14 2008 -0800
@@ -6,8 +6,8 @@
 .. toctree::
    :maxdepth: 1
 
-   B010-define-schema.en.txt
-   B020-define-workflows.en.txt
-   B030-data-as-objects.en.txt
-   B040-migration.en.txt
+   B0010-define-schema.en.txt
+   B0020-define-workflows.en.txt
+   B0030-data-as-objects.en.txt
+   B0040-migration.en.txt