diff --git a/perl-xCAT/xCAT/Schema.pm b/perl-xCAT/xCAT/Schema.pm
index e83fe89a8..2638b94c8 100644
--- a/perl-xCAT/xCAT/Schema.pm
+++ b/perl-xCAT/xCAT/Schema.pm
@@ -349,7 +349,7 @@ hosts => {
  descriptions => {
   node => 'The node name or group name.',
   ip => 'The IP address of the node. This is only used in makehosts.  The rest of xCAT uses system name resolution to resolve node names to IP addresses.',
-  hostnames => 'Hostname aliases added to /etc/hosts for this node.',
+  hostnames => 'Hostname aliases added to /etc/hosts for this node. Comma or blank separated list.',
   otherinterfaces => 'Other IP addresses to add for this node.  Format: -<ext>:<ip>,<intfhostname>:<ip>,...',
      comments => 'Any user-written notes.',
      disable => "Set to 'yes' or '1' to comment out this row.",