diff --git a/Enable-802.11mc-FTM-on-Intel-8260.md b/Enable-802.11mc-FTM-on-Intel-8260.md
index 1dcc9c7..c6d40be 100644
--- a/Enable-802.11mc-FTM-on-Intel-8260.md
+++ b/Enable-802.11mc-FTM-on-Intel-8260.md
@@ -56,6 +56,7 @@ $ cat /var/log/syslog | grep iwlwifi
 ... iwlwifi-stack-public:release/LinuxCore30:...
 ...
 ```
+Notice that this is **not a permanent change.** If you install packages (and thus restore the kernel), it will revert back to the original one and you have to redo this step.
 
 # 0x2. HostAPd Installation
 Note: do not install via `sudo apt install hostapd` unless the binary is of version 2.6+.