diff --git a/config.org b/config.org
index 377f41c..1b270f0 100644
--- a/config.org
+++ b/config.org
@@ -416,13 +416,15 @@ Including indent-buffer, which should not be called automatically on save."
    #+END_SRC
 ** Programming language things
 *** Lisp
-    Rainbow parentheses, If someone can tell me why it does not
-    work. please tell me.
+    Parentheses highlight in lisp modes. So you can easily identify
+    them.
     #+BEGIN_SRC emacs-lisp
-   (use-package rainbow-delimiters
-   :ensure t
-   :init
-   (add-hook 'emacs-lisp-mode 'rainbow-delimiters-mode))
+      (use-package rainbow-delimiters
+      :ensure t
+      :init
+      (add-hook 'emacs-lisp-mode-hook 'rainbow-delimiters-mode)
+      (add-hook 'lisp-mode-hook 'rainbow-delimiters-mode)
+      (add-hook 'scheme-mode-hook 'rainbow-delimiters-mode))
 
     #+END_SRC
 *** Perl