diff --git a/doc/ChangeLog b/doc/ChangeLog
index 07188aa65d..b5ae4b879c 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,7 @@
+2008-12-01	Joel Sherrill <joel.sherrill@OARcorp.com>
+
+	* user/concepts.t: Id has four parts not three.
+
 2008-11-07	Joel Sherrill <joel.sherrill@OARcorp.com>
 
 	* user/concepts.t: Use 32 bit version centered.
diff --git a/doc/user/concepts.t b/doc/user/concepts.t
index 457a474ae1..80d1e2f020 100644
--- a/doc/user/concepts.t
+++ b/doc/user/concepts.t
@@ -119,7 +119,7 @@ void print_name(rtems_id the_object)
 @need 3000
 
 An object ID is a unique unsigned thirty-two bit
-entity composed of three parts: API, object class, node, and index.
+entity composed of four parts: API, object class, node, and index.
 The data type @code{@value{DIRPREFIX}id} is used to store object IDs.