diff --git a/xCAT-client/pods/man8/chtab.8.pod b/xCAT-client/pods/man8/chtab.8.pod
index 1c776b5de..fbd5673ad 100644
--- a/xCAT-client/pods/man8/chtab.8.pod
+++ b/xCAT-client/pods/man8/chtab.8.pod
@@ -14,7 +14,7 @@ I<chtab -d [keycolname=keyvalue] [tablename.colname=newvalue] >
 
 =head1 DESCRIPTION
 
- The chtab command adds or deletes or updates the attribute value in the input table.column for the input keyvalue.
+ The chtab command adds or deletes or updates the attribute value in the input table.column for the input keyvalue.  Normally, the given value will completely replace the current attribute value.  But if "+=" is used instead of "=", the specified value will be appended to the coma separated list of the attribute, if it is not already there.
 
 
 =head1 OPTIONS
@@ -54,7 +54,11 @@ I<chtab  node=node1 nodetype.os=rhel5>
 
 I<chtab  node=node1 nodetype.os=sles>
 
-5. To delete node1 from nodetype table:
+5. To change node1 by appending otherpkgs to the postbootscripts field in the postscripts table:
+
+I<chtab node=node1 postscripts.postbootscripts+=otherpkgs>
+
+6. To delete node1 from nodetype table:
 
 I<chtab -d node=node1 nodetype>
 
@@ -66,4 +70,4 @@ I<chtab -d node=node1 nodetype>
 
 =head1 SEE ALSO
 
-L<tabdump(8)|tabdump.8>, L<tabedit(8)|tabedit.8>
\ No newline at end of file
+L<tabdump(8)|tabdump.8>, L<tabedit(8)|tabedit.8>