diff --git a/custom.el b/custom.el
index 039690e..e8412f9 100644
--- a/custom.el
+++ b/custom.el
@@ -9,7 +9,7 @@
  '(elpy-eldoc-show-current-function nil)
  '(package-selected-packages
    (quote
-    (swiper mode-line-bell htmlize cython-mode blacken dired-narrow lua-mode browse-kill-ring clipmon free-keys org-link-minor-mode js2-mode js2-refactor xref-js2 python-django visual-regexp-steroids pcre2el vimrc-mode iedit transient magit dracula-theme flycheck elpy ein better-defaults ssh-config-mode yaml-mode apache-mode web-mode undo-tree))))
+    (window-numbering php-mode swiper mode-line-bell htmlize cython-mode blacken dired-narrow lua-mode browse-kill-ring clipmon free-keys org-link-minor-mode js2-mode js2-refactor xref-js2 python-django visual-regexp-steroids pcre2el vimrc-mode iedit transient magit dracula-theme flycheck elpy ein better-defaults ssh-config-mode yaml-mode apache-mode web-mode undo-tree))))
 (custom-set-faces
  ;; custom-set-faces was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.
diff --git a/settings.org b/settings.org
index 2f10a41..932da4b 100644
--- a/settings.org
+++ b/settings.org
@@ -70,6 +70,10 @@
  try-expand-all-abbrevs try-expand-list try-expand-line
  try-complete-lisp-symbol-partially try-complete-lisp-symbol))
 #+END_SRC
+*** window numbering mode
+#+BEGIN_SRC emacs-lisp
+(window-numbering-mode)
+#+END_SRC
 ** options
 *** global
 **** recent files