diff --git a/41_snapshots-btrfs b/41_snapshots-btrfs
index 431c33a..4f4d074 100755
--- a/41_snapshots-btrfs
+++ b/41_snapshots-btrfs
@@ -10,7 +10,8 @@
 #   Improves Grub by adding "btrfs snapshots" to the Grub menu.
 #   You can start your system on a "snapshot" from the Grub menu.
 #   Supports manual snapshots, snapper ...
-#   Warning : it isn't recommended to start on read-only snapshot
+#   Warning : booting on read-only snapshots can be tricky
+#   (If you choose to do it, /var/log must be on a separate subvolume.Otherwise, make sure your snapshots are writeable.)
 #
 # What this script does:
 # - Automatically List snapshots existing on root partition (btrfs).