diff --git a/xCAT-client/share/doc/index.html b/xCAT-client/share/doc/index.html
index 9da34e807..7d72e7d02 100644
--- a/xCAT-client/share/doc/index.html
+++ b/xCAT-client/share/doc/index.html
@@ -33,8 +33,8 @@
   <LI><A href="xCAT2SetupPostgresql.pdf">Setup PostgreSQL as the xCAT Database</A></LI>
   <LI><A href="xCAT2SetupDB2.pdf">Setup DB2 as the xCAT Database</A></LI>
   <LI><A href="xCAT2SetupHierarchy.pdf">Setting Up a Hierarchical Cluster</A></LI>
-  <LI><A href="xCAT2RollUpdate.pdf">xCAT Rolling Update Support</A></LI>
   <LI><A href="xCAT2onAIXServiceNodes.pdf">Setting Up an AIX Hierarchical Cluster</A></LI>
+  <LI><A href="xCAT2RollUpdate.pdf">xCAT Rolling Update Support</A></LI>
   <LI><A href="xCAT2pHWManagement.pdf">System p Hardware Management</A></LI>
   <LI><A href="xCAT2webInterfaceHowTo.pdf">Installing and Running the xCAT Web Interface</A></LI>
   <LI><A href="xCAT2.ldap.pdf">Setting UP LDAP in an xCAT Cluster</A></LI>