diff --git a/perl-xCAT/xCAT/TableUtils.pm b/perl-xCAT/xCAT/TableUtils.pm
index 519f63a98..0a2d9adab 100644
--- a/perl-xCAT/xCAT/TableUtils.pm
+++ b/perl-xCAT/xCAT/TableUtils.pm
@@ -1999,7 +1999,7 @@ sub updatenodegroups {
         }
     }
     my ($ent) = $tabhd->getNodeAttribs($node, ['groups']);
-    my @list = qw(all);
+    my @list = ();
     if (defined($ent) and $ent->{groups}) {
         push @list, split(/,/,$ent->{groups});
     }   
diff --git a/xCAT-server/lib/xcat/plugins/blade.pm b/xCAT-server/lib/xcat/plugins/blade.pm
index 0a6e91568..a9fcc666a 100644
--- a/xCAT-server/lib/xcat/plugins/blade.pm
+++ b/xCAT-server/lib/xcat/plugins/blade.pm
@@ -4423,7 +4423,7 @@ sub process_request {
     if ($request->{mtm} and $request->{mtm} =~ /^(\w{4})/) {
         my $group = xCAT::data::ibmhwtypes::parse_group($request->{mtm});
         if (defined($group)) {
-            xCAT::TableUtils->updatenodegroups($node, $group); 
+            xCAT::TableUtils->updatenodegroups($node, $group.",all"); 
         }
     }
     if ($mac) {