diff --git a/lib/towerops/snmp/profiles/base.ex b/lib/towerops/snmp/profiles/base.ex
index 83c32cc2..0dd85ec2 100644
--- a/lib/towerops/snmp/profiles/base.ex
+++ b/lib/towerops/snmp/profiles/base.ex
@@ -1346,6 +1346,9 @@ defmodule Towerops.Snmp.Profiles.Base do
   end
 
   defp find_vendor_match(sys_descr, sys_object_id) do
+    sys_descr = sys_descr || ""
+    sys_object_id = sys_object_id || ""
+
     Enum.find_value(@vendor_patterns, fn {descr_patterns, oid_patterns, manufacturer, extractor} ->
       descr_match = descr_patterns != [] and String.contains?(sys_descr, descr_patterns)
       oid_match = oid_patterns != [] and String.contains?(sys_object_id, oid_patterns)