diff --git a/doc/libraries.xml b/doc/libraries.xml
index ab7f9145..d78a2a6e 100644
--- a/doc/libraries.xml
+++ b/doc/libraries.xml
@@ -1134,7 +1134,7 @@
     <name>Smart Ptr</name>
     <authors>Greg Colvin, Beman Dawes, Peter Dimov, and Darin
     Adler</authors>
-    <description>Five smart pointer class templates.</description>
+    <description>Six smart pointer class templates.</description>
     <documentation>libs/smart_ptr/smart_ptr.htm</documentation>
     <std-proposal>false</std-proposal>
     <std-tr1>true</std-tr1>