diff --git a/PVE/Storage.pm b/PVE/Storage.pm
index 9a313b0..d55b645 100755
--- a/PVE/Storage.pm
+++ b/PVE/Storage.pm
@@ -996,6 +996,8 @@ sub scan_zfs {
 	    my ($pool, $size_str, $used_str) = ($1, $2, $3);
 	    my $size = PVE::Storage::ZFSPoolPlugin::zfs_parse_size($size_str);
 	    my $used = PVE::Storage::ZFSPoolPlugin::zfs_parse_size($used_str);
+	    # ignore subvolumes generated by our ZFSPoolPlugin
+	    return if $pool =~ m!/subvol-\d+-[^/]+$!; 
 	    push @$res, { pool => $pool, size => $size, free => $size-$used };
 	}
     });