diff --git a/.emacs.d/lisp/patch-eshell.el b/.emacs.d/lisp/patch-eshell.el
index da85492f..9784aff9 100644
--- a/.emacs.d/lisp/patch-eshell.el
+++ b/.emacs.d/lisp/patch-eshell.el
@@ -1,5 +1,6 @@
 ;;; REVIEW: Ignore dups in the entire ring, not just the last entry.
 ;;; Reported upstream, see #30466.
+;; Should be done as of Emacs 28.
 (defun ambrevar/eshell-add-input-to-history (input)
   "Add the string INPUT to the history ring.
 Input is entered into the input history ring, if the value of