diff --git a/docs/TODOLIST.md b/docs/TODOLIST.md
index 8b12e7d..f57eedd 100644
--- a/docs/TODOLIST.md
+++ b/docs/TODOLIST.md
@@ -13,3 +13,4 @@
 * Markdown Previewer, add margin around preview page.
 * Maybe xterm.js running in browser is cool. ;)
 * RSS Reader: use python feedparser or JavaScript library implement reader like Google Reader.
+* Better error prompt if something goes wrong, maybe in the `*eaf*` buffer