diff --git a/perl-xCAT/xCAT/Schema.pm b/perl-xCAT/xCAT/Schema.pm
index 9808d67e7..6d9f32cc4 100644
--- a/perl-xCAT/xCAT/Schema.pm
+++ b/perl-xCAT/xCAT/Schema.pm
@@ -141,7 +141,7 @@ litetree => {
 litefile => {
 	cols => [qw(image file options comments disable)],
 	keys => [qw(image file)],
-	required => [qw(file)], # default type is rw nfsroot   
+	required => [qw(image file)], # default type is rw nfsroot   
 	table_desc => 'The litefile table specifies the directories and files on the statelite nodes that should be readwrite, persistent, or readonly overlay.  All other files in the statelite nodes come from the readonly statelite image.',        
 	descriptions => {
 		image => "The name of the image that will use these files, as specified in the osimage table. 'ALL' means use it for all images.",