diff --git a/includes/discovery/os/ciscosb.inc.php b/includes/discovery/os/ciscosb.inc.php
index 1c55ba38de..03d942b217 100644
--- a/includes/discovery/os/ciscosb.inc.php
+++ b/includes/discovery/os/ciscosb.inc.php
@@ -1,5 +1,8 @@
 <?php
 if (!$os) {
+    if (strstr($sysObjectId, '.1.3.6.1.4.1.9.6.1.81')) {
+        $os = 'ciscosb';
+    }
     if (strstr($sysObjectId, '.1.3.6.1.4.1.9.6.1.82')) {
         $os = 'ciscosb';
     }
@@ -19,4 +22,4 @@ if (!$os) {
     if (strstr($sysObjectId, '.1.3.6.1.4.1.9.6.1.89')) {
         $os = 'ciscosb';
     }
-}
+}
\ No newline at end of file