diff --git a/includes/discovery/sensors/fanspeeds/lmsensors.inc.php b/includes/discovery/sensors/fanspeeds/lmsensors.inc.php
index 3127970f30..69b523fecc 100644
--- a/includes/discovery/sensors/fanspeeds/lmsensors.inc.php
+++ b/includes/discovery/sensors/fanspeeds/lmsensors.inc.php
@@ -19,7 +19,7 @@ if ($device['os'] == 'linux' || $device['os'] == 'pktj' ||  $device['os'] == 'cu
             $oid              = '1.3.6.1.4.1.2021.13.16.3.1.3.'.$index;
             $current          = snmp_get($device, $oid, '-Oqv', 'LM-SENSORS-MIB');
             $descr            = trim(str_ireplace('fan-', '', $descr));
-            if ($current > '0') {
+            if ($current !== false && $current >= 0) {
                 discover_sensor($valid['sensor'], 'fanspeed', $device, $oid, $index, 'lmsensors', $descr, '1', '1', null, null, null, null, $current);
             }
         }