diff --git a/bundles/smartd/metadata.py b/bundles/smartd/metadata.py
index e444c35..73789d0 100644
--- a/bundles/smartd/metadata.py
+++ b/bundles/smartd/metadata.py
@@ -55,7 +55,7 @@ def zfs_disks_to_metadata(metadata):
                 continue
 
             for disk in option['devices']:
-                if search(r'p([0-9]+)$', disk):
+                if search(r'p([0-9]+)$', disk) or disk.startswith('/dev/mapper/'):
                     continue
 
                 disks.add(disk)