diff --git a/right-fit-swap-for-laptop-hibernation-Ubuntu-20.04-full-ZFS-install.md b/right-fit-swap-for-laptop-hibernation-Ubuntu-20.04-full-ZFS-install.md
index 8789a92..88f7e80 100644
--- a/right-fit-swap-for-laptop-hibernation-Ubuntu-20.04-full-ZFS-install.md
+++ b/right-fit-swap-for-laptop-hibernation-Ubuntu-20.04-full-ZFS-install.md
@@ -110,6 +110,9 @@ Because it's not possible to configure suspend-then-hibernate for Lid close insi
 xfconf-query -c xfce4-power-manager -p /xfce4-power-manager/logind-handle-lid-switch -n -t bool -s true
 ~~~
 
+Be carrefull this setup may be remove if you do some modification in Control Panel.  
+
+
 If you want everything time related, then you can set them with settings in /etc/systemd : **sleep.conf** and **logind.conf**
 
 ## What is our suspend Hibernate comportement with above configuration