diff --git a/xCAT-server-2.0/lib/xcat/plugins/dhcp.pm b/xCAT-server-2.0/lib/xcat/plugins/dhcp.pm
index c8660b9bf..9570e9192 100644
--- a/xCAT-server-2.0/lib/xcat/plugins/dhcp.pm
+++ b/xCAT-server-2.0/lib/xcat/plugins/dhcp.pm
@@ -86,7 +86,7 @@ sub addnode {
      my $ent;
      $ent = $nrtab->getNodeAttribs($node,['tftpserver']);
      if ($ent and $ent->{tftpserver}) {
-        $statements = 'next-server  = \"'.inet_ntoa(inet_aton($ent->{tftpserver})).'\";'.$statements;
+        $statements = 'next-server '.inet_ntoa(inet_aton($ent->{tftpserver})).';'.$statements;
      } #else {
        # $ent = $nrtab->getNodeAttribs($node,['servicenode']);
        # if ($ent and $ent->{servicenode}) {