diff --git a/Android.bp b/Android.bp
index c30bf30..779af3d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,5 +1,7 @@
 // This file is generated by cargo_embargo.
-// Do not modify this file as changes will be overridden on upgrade.
+// Do not modify this file after the first "rust_*" or "genrule" module
+// because the changes will be overridden on upgrade.
+// Content before the first "rust_*" or "genrule" module is preserved.
 
 // We renamed the shared_libs dependence from libsqlite3 to libsqlite.
 // srcs has been moved out of _defaults to work around b/163420435