diff --git a/README.org b/README.org
index 20cda21..6534a8d 100644
--- a/README.org
+++ b/README.org
@@ -2387,11 +2387,19 @@ list detailing and motivating each listing:
 #+caption: Undo calling =org-ctags-enable=.
 #+name: lst:undo-org-ctags
 #+begin_src emacs-lisp -n :results silent
-;; See also `org-link-search-must-match-exact-headline' for link searches.
-;; Undo calling `org-ctags-enable'.  For what may cause `org-ctags'
-;; loading, see: https://list.orgmode.org/87mt43agk6.fsf@localhost/
+;; See also `org-link-search-must-match-exact-headline' for link
+;; searches.  Undo calling `org-ctags-enable'.  For what may cause
+;; `org-ctags' loading, see:
+;; https://list.orgmode.org/87mt43agk6.fsf@localhost/
+;;
+;; Completion may call `visit-tags-table' which also prompts for a
+;; TAGS table but this is another mechanism.  While editing Python
+;; source blocks, start a Python interpreter to get rid of such
+;; prompts.
 (defun org-ctags-disable ()
-  "Undo calling `org-ctags-enable'."
+  "Undo calling `org-ctags-enable'.
+Watch out for completion `visit-tags-table' prompts."
+  (interactive)
   (setq org-ctags-enabled-p nil)
   ;; Steal the options list from the `org-ctags-open-link-functions' code.
   (setq org-open-link-functions