diff --git a/.emacs.d/mail.el b/.emacs.d/mail.el
index f49cfdb..9acbb50 100644
--- a/.emacs.d/mail.el
+++ b/.emacs.d/mail.el
@@ -90,7 +90,7 @@
          (encrypt))))
 
 (defun my/message-insert-signature-need-on-top ()
-  nil)
+  t)
 
 (defun my/message-maybe-fix-signature (&rest _)
   (when (my/message-insert-signature-need-on-top)
diff --git a/Mail.org b/Mail.org
index 9bbb83e..e49c025 100644
--- a/Mail.org
+++ b/Mail.org
@@ -561,7 +561,7 @@ Edit <2024-08-19 Mon>: see above
 
 #+begin_src emacs-lisp
 (defun my/message-insert-signature-need-on-top ()
-  nil)
+  t)
 #+end_src
 
 Then advice the =notmuch-mua-reply= function: