diff --git a/mu4e/mu4e-compose.el b/mu4e/mu4e-compose.el
index fb1b0c08..aed5531f 100644
--- a/mu4e/mu4e-compose.el
+++ b/mu4e/mu4e-compose.el
@@ -796,7 +796,7 @@ draft message."
 
 ;;;###autoload
 (defun mu4e~compose-mail (&optional to subject other-headers _continue
-                                    yank-action _send-actions _return-action)
+                                    _ yank-action _send-actions _return-action)
   "This is mu4e's implementation of `compose-mail'.
 Quoting its docstring: