diff --git a/README.md b/README.md
index 570fb99d05a5e486d70115b56d961dda81d9721b..530bb8e8334e838c120340b1b124d7db46ec229c 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,7 @@ Kernel config:
 
 ## Installation
 
+- ⚠ make sure secureboot is disabled.
 - simply install the packages using `dpkg -i`
 
 ## Verifying that the Realtime Kernel is Running