diff --git a/includes/definitions/arbos.yaml b/includes/definitions/arbos.yaml
index 893ae37d25..13822d4ff8 100644
--- a/includes/definitions/arbos.yaml
+++ b/includes/definitions/arbos.yaml
@@ -10,7 +10,6 @@ over:
 discovery:
     -
         sysObjectID:
-            - .1.3.6.1.4.1.9694.1.4
-            - .1.3.6.1.4.1.9694.1.5
+            - .1.3.6.1.4.1.9694.1
 mib_dir:
     - arbornet