diff --git a/grub-core/partmap/bsdlabel.c b/grub-core/partmap/bsdlabel.c
index da5c6e3ab..eff3bbe44 100644
--- a/grub-core/partmap/bsdlabel.c
+++ b/grub-core/partmap/bsdlabel.c
@@ -139,6 +139,9 @@ bsdlabel_partition_map_iterate (grub_disk_t disk,
 		       &grub_bsdlabel_partition_map, hook);
 }
 
+/* This is a total breakage. Even when net-/openbsd label is inside partition
+   it actually describes the whole disk.
+ */
 static grub_err_t
 netopenbsdlabel_partition_map_iterate (grub_disk_t disk, grub_uint8_t type,
 				       struct grub_partition_map *pmap,