diff --git a/includes/discovery/storage/hrstorage.inc.php b/includes/discovery/storage/hrstorage.inc.php
index 20c36a7ddb..6b48ef63e3 100644
--- a/includes/discovery/storage/hrstorage.inc.php
+++ b/includes/discovery/storage/hrstorage.inc.php
@@ -25,7 +25,7 @@ if (is_array($hrstorage_array)) {
     ];
 
     foreach ($hrstorage_array as $index => $storage) {
-        $fstype = $storage['hrStorageType'];
+        $fstype = $storage['hrStorageType'] ?? null;
         $descr = $storage['hrStorageDescr'];
         $storage['hrStorageSize'] = fix_integer_value($storage['hrStorageSize']);
         $storage['hrStorageUsed'] = fix_integer_value($storage['hrStorageUsed']);