diff --git a/includes/definitions/truenas.yaml b/includes/definitions/truenas.yaml
index 9cac63e9b1..04a5cf4ae7 100644
--- a/includes/definitions/truenas.yaml
+++ b/includes/definitions/truenas.yaml
@@ -23,7 +23,7 @@ discovery:
     -
         sysObjectID:
             - .1.3.6.1.4.1.8072.3.2.8
-            - .1.3.6.1.4.1.50536.3.1
+            - .1.3.6.1.4.1.50536.3  
         sysDescr:
             - FreeNAS
             - TrueNAS