diff --git a/includes/discovery/os/nxos.inc.php b/includes/discovery/os/nxos.inc.php
index 989021c932..5e374396a7 100644
--- a/includes/discovery/os/nxos.inc.php
+++ b/includes/discovery/os/nxos.inc.php
@@ -2,7 +2,7 @@
 
 if (!$os)
 {
-  if (strstr($sysDescr, "NX-OS")) { $os = "nxos"; }
+  if (strstr($sysDescr, "NX-OS(tm)")) { $os = "nxos"; }
 }
 
-?>
\ No newline at end of file
+?>