diff --git a/README.org b/README.org
index 80df674..5ba1966 100644
--- a/README.org
+++ b/README.org
@@ -1339,10 +1339,12 @@ Loading =tex.el= immediately instead of lazily ensures proper initialization of
 elisp library file has no autoload cookie.  Without prior loading of =tex.el=,
 Emacs will complain that ~TeX-master~ is no safe local variable in case it reads
 a LaTeX file that sets ~TeX-master~.  Listing [[lst:require-auctex]] initializes
-[[https://en.wikipedia.org/wiki/AUCTeX][AUCTeX]] properly for LuaTeX or LuaLaTeX.  Finally, out of the box, [[https://en.wikipedia.org/wiki/AUCTeX][AUCTeX]] does
-not indent text between square brackets.  The code in listing [[lst:configure-auctex]]
-corrects this by advising to override ~TeX-brace-count-line~ with
-~TeX-brace-count-line-advice~.
+[[https://en.wikipedia.org/wiki/AUCTeX][AUCTeX]] properly for LuaTeX or LuaLaTeX.  In case the output of =LuaLaTeX= has
+missing fonts, listing [[lst:update-lualatex-opentype-font-name-database]] defines a
+function to update the =OpenType Font= name database for =LuaLaTeX=.  Finally,
+out of the box, [[https://en.wikipedia.org/wiki/AUCTeX][AUCTeX]] does not indent text between square brackets.  The code
+in listing [[lst:configure-auctex]] corrects this by advising to override
+~TeX-brace-count-line~ with ~TeX-brace-count-line-advice~.
 
 #+caption[Require =AUCTeX=]:
 #+caption: Require =AUCTeX=.
@@ -1359,6 +1361,21 @@ corrects this by advising to override ~TeX-brace-count-line~ with
      '(TeX-electric-math nil)))
 #+end_src
 
+
+#+caption[Update the =LuaLaTeX OpenType Font=  name database]:
+#+caption: Update the =LuaLaTeX= =OpenType Font= name database.
+#+name: lst:update-lualatex-opentype-font-name-database
+#+begin_src emacs-lisp
+  (defun update-lualatex-opentype-font-name-database ()
+    "Update the \"OpenType Font\" name database for \"LuaLaTeX\"."
+    (interactive)
+    (cl-destructuring-bind (exit-code output)
+        (shell-command-with-exit-code
+         "luaotfload-tool" "-vv" "--update" "--force")
+      (if (= 0 exit-code) (message "%s" (string-trim output))
+        (error "%s" (string-trim output)))))
+#+end_src
+
 #+caption[Configure =AUCTeX=]:
 #+caption: Configure =AUCTeX=.
 #+name: lst:configure-auctex