diff --git a/perl-xCAT/xCAT/Schema.pm b/perl-xCAT/xCAT/Schema.pm
index 6a3191432..dedee793e 100644
--- a/perl-xCAT/xCAT/Schema.pm
+++ b/perl-xCAT/xCAT/Schema.pm
@@ -60,7 +60,7 @@ vm => {
     }
 },
 hypervisor => {
-        cols => [qw(noe mgr comments disable)],
+        cols => [qw(node mgr comments disable)],
         keys => [qw(node)],
         table_desc => 'Hypervisor parameters',
         descriptions => {
diff --git a/xCAT-server/lib/xcat/plugins/esx.pm b/xCAT-server/lib/xcat/plugins/esx.pm
index 249c21699..cfd8bc6eb 100644
--- a/xCAT-server/lib/xcat/plugins/esx.pm
+++ b/xCAT-server/lib/xcat/plugins/esx.pm
@@ -214,7 +214,10 @@ sub preprocess_request {
     #$vmtabhash = $vmtab->getNodesAttribs(\@hyps,['host']);
     #We now use hypervisor fields to be unambiguous
     my $hyptab = xCAT::Table->new('hypervisor');
-    my $hyptabhash = $hyptab->getNodesAttribs(\@hyps,['mgr']);
+    my $hyptabhash={};
+    if ($hyptab) {
+        $hyptabhash = $hyptab->getNodesAttribs(\@hyps,['mgr']);
+    }
 
 
 	# build each request for each service node