diff --git a/perl-xCAT-2.0/xCAT/Schema.pm b/perl-xCAT-2.0/xCAT/Schema.pm
index 9c961ba0a..7cd5ec911 100644
--- a/perl-xCAT-2.0/xCAT/Schema.pm
+++ b/perl-xCAT-2.0/xCAT/Schema.pm
@@ -13,7 +13,7 @@ package xCAT::Schema;
     cols => [qw(node hcp id profile parent comments disable)],
     keys => [qw(node)],
   },
-  ppcDirect => {
+  ppcdirect => {
     cols => [qw(hcp username password comments disable)],
     keys => [qw(hcp)],
   },