diff --git a/plugins/ubiquiti/unifi_api b/plugins/ubiquiti/unifi_api
index ab1d87dd..9deb6aef 100755
--- a/plugins/ubiquiti/unifi_api
+++ b/plugins/ubiquiti/unifi_api
@@ -862,6 +862,11 @@ sub do_values_xfer_by_uplink {
 	# Provide transfer for unifi uplink - CONFIG
 	if ( !$PluginConfig{'enable_xfer_device'} ) { return 0; }
 
+	$Data{'uplink'}{"rx_speed"} = "U" unless $Data{'uplink'}{"rx_speed"};
+	$Data{'uplink'}{"tx_speed"} = "U" unless $Data{'uplink'}{"tx_speed"};
+	$Data{'uplink'}{"rx_bytes"} = "U" unless $Data{'uplink'}{"rx_bytes"};
+	$Data{'uplink'}{"tx_bytes"} = "U" unless $Data{'uplink'}{"tx_bytes"};
+
 	print "multigraph unifi_xfer_by_uplink\n";
 	print "rx_speed.value " . $Data{'uplink'}{"rx_speed"} . "\n";
 	print "tx_speed.value " . $Data{'uplink'}{"tx_speed"} . "\n";