diff --git a/includes/definitions/e3meterdc.yaml b/includes/definitions/e3meterdc.yaml
index 895b57be41..34ae0b1aa9 100644
--- a/includes/definitions/e3meterdc.yaml
+++ b/includes/definitions/e3meterdc.yaml
@@ -10,4 +10,4 @@ over:
 discovery:
     -
       sysObjectID:
-          - '.1.3.6.1.4.1.21695'
+          - '.1.3.6.1.4.1.21695.1401'
diff --git a/includes/polling/os/e3meterdc.inc.php b/includes/polling/os/e3meterdc.inc.php
index 0f0ae26d8b..8faac818c3 100644
--- a/includes/polling/os/e3meterdc.inc.php
+++ b/includes/polling/os/e3meterdc.inc.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * e3meter.inc.php
+ * e3meterdc.inc.php
  *
  * LibreNMS os poller module for Zyxel devices
  *
@@ -29,5 +29,5 @@ $e3meter = snmp_get_multi_oid($device, $oids, '-OUQnt');
 $version = $e3meter['.1.3.6.1.4.1.21695.1.10.1.1'];
 
 unset(
-    $zyxel
+    $e3meter
 );