diff --git a/init.org b/init.org
index b4091a6..67c7dd6 100644
--- a/init.org
+++ b/init.org
@@ -3043,7 +3043,9 @@ PR ideas
   (setq mu4e-get-mail-command "mbsync -a"
         mu4e-drafts-folder    "/Drafts/"
         mu4e-sent-folder      "/Sent/"
-        mu4e-trash-folder     "/Trash/"))
+        mu4e-trash-folder     "/Trash/"
+        ;; Use vertico, not ido.
+        mu4e-completing-read-function #'completing-read))
 #+END_SRC
 
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