diff --git a/html/data.php b/html/data.php
index bd3d5547e5..ce08fd6775 100644
--- a/html/data.php
+++ b/html/data.php
@@ -36,6 +36,14 @@ if (is_numeric($_GET['id']) && ($config['allow_unauth_graphs'] || port_permitted
 
 $in  = snmp_get($device, "ifInOctets.".$port['ifIndex'], "-OUqnv", "IF-MIB");
 $out = snmp_get($device, "ifOutOctets.".$port['ifIndex'], "-OUqnv", "IF-MIB");
+if(empty($in))
+{
+  $in  = snmp_get($device, "ifHCInOctets.".$port['ifIndex'], "-OUqnv", "IF-MIB");
+}
+if(empty($out))
+{
+  $out = snmp_get($device, "ifHCOutOctets.".$port['ifIndex'], "-OUqnv", "IF-MIB");
+}
 
 $time = time();