diff --git a/includes/discovery/os/ibmtl.inc.php b/includes/discovery/os/ibmtl.inc.php
index 6d1903effb..e1461b0d5d 100644
--- a/includes/discovery/os/ibmtl.inc.php
+++ b/includes/discovery/os/ibmtl.inc.php
@@ -12,7 +12,7 @@
 
 if (!$os) {
     $ibmtl_snmpget = snmp_get($device, 'SML-MIB:product-Name.0', '-Oqv', '');
-    if (!empty($ibmtl_snmpget)) {
+    if (stristr($ibmtl_snmpget, 'IBM System Storage TS3500 Tape Library')) {
         $os = 'ibmtl';
     }
 }
\ No newline at end of file