diff --git a/xCAT-server/lib/xcat/plugins/dhcp.pm b/xCAT-server/lib/xcat/plugins/dhcp.pm
index 9212e33df..460547f7e 100644
--- a/xCAT-server/lib/xcat/plugins/dhcp.pm
+++ b/xCAT-server/lib/xcat/plugins/dhcp.pm
@@ -2650,7 +2650,7 @@ sub addnet
         push @netent, "      option conf-file = \"http://$tftp/tftpboot/pxelinux.cfg/p/" . $net . "_" . $maskbits . "\";\n";
         push @netent,
 "    } else if substring (option vendor-class-identifier,0,11) = \"onie_vendor\" { #for onie on cumulus switch\n";
-        push @netent, "      option www-server = \"http://install/onie/onie-installer\";\n";
+        push @netent, "      option www-server = \"http://$tftp/install/onie/onie-installer\";\n";
         push @netent,
 "    } else if substring(filename,0,1) = null { #otherwise, provide yaboot if the client isn't specific\n ";
         push @netent, "      filename \"/yaboot\";\n";