diff --git a/doc/flashing.md b/doc/flashing.md
index 1e8d624..0f2db86 100644
--- a/doc/flashing.md
+++ b/doc/flashing.md
@@ -4,6 +4,9 @@
 
 Use this method for flashing a system already running System76 EC.
 
+This will trigger a watchdog reset causing the system to immediately power off.
+Save and close all applications before flashing.
+
 ```
 make BOARD=<vendor>/<model> flash_internal
 ```