1 files changed, 1 insertions, 0 deletions

diff --git a/book.rnc b/book.rnc
index b7ebf7e..51d57b1 100644
--- a/book.rnc
+++ b/book.rnc
@@ -16,6 +16,7 @@ book.attlist &=
   attribute disclaimer {
     "articles" | "oldbook" | "draft" | "obsolete"
   }?,
+  attribute redirect { text }?,
   attribute lang { text }?
 part = element part { part.attlist, title, abstract, chapter+ }
 part.attlist &= attribute id { text }?