diff --git a/perl-xCAT/xCAT/Schema.pm b/perl-xCAT/xCAT/Schema.pm
index f4f4ae98a..50794eeae 100644
--- a/perl-xCAT/xCAT/Schema.pm
+++ b/perl-xCAT/xCAT/Schema.pm
@@ -676,7 +676,7 @@ osimage => {
   groups => 'A comma-delimited list of image groups of which this image is a member.  Image groups can be used in the litefile and litetree table instead of a single image name. Group names are arbitrary.',
   imagetype => 'The type of operating system image this definition represents (linux,AIX).',
   description => 'OS Image Description',
-  provmethod => 'The provisioning method for node deployment. The valid values are install, netboot,statelite,boottarget,dualboot. If boottarget is set, you must set linuximage.boottarget to the name of the boottarget definition. It is not used by AIX.',
+  provmethod => 'The provisioning method for node deployment. The valid values are install, netboot,statelite,boottarget,dualboot,sysclone. If boottarget is set, you must set linuximage.boottarget to the name of the boottarget definition. It is not used by AIX.',
   rootfstype => 'The filesystem type for the rootfs is used when the provmethod is statelite. The valid values are nfs or ramdisk. The default value is nfs',
   osdistroname => 'The name of the OS distro definition.  This attribute can be used to specify which OS distro to use, instead of using the osname,osvers,and osarch attributes.',
   osupdatename => 'A comma-separated list of OS distro updates to apply to this osimage.',