diff --git a/includes/discovery/sensors/temperatures/riverbed.inc.php b/includes/discovery/sensors/temperatures/riverbed.inc.php
index b50da46d7b..bfe8d83127 100644
--- a/includes/discovery/sensors/temperatures/riverbed.inc.php
+++ b/includes/discovery/sensors/temperatures/riverbed.inc.php
@@ -12,13 +12,11 @@
 
 if ($device['os'] == 'riverbed') {
     d_echo('Riverbed');
-
     $oid = '.1.3.6.1.4.1.17163.1.1.2.9.0';
+    $index = 0;
     $descr = 'System Temperature';
-    $index = $oid;
-    $temp = snmp_get($device, $oid, 'Oqv');
-
-    if (is_numeric($temp)) {
-        discover_sensor($valid['sensor'], 'temperature', $device, $oid, $index, 'riverbed', $descr, '1', '1', 0, null, null, 65, $current);
+    $temperature = snmp_get($device, $oid, '-Oqv');
+    if (is_numeric($temperature)) {
+        discover_sensor($valid['sensor'], 'temperature', $device, $oid, $index, 'riverbed', $descr, '1', '1', 0, null, null, 65, $temperature);
     }
 }