diff --git a/README.org b/README.org
index 58cb32e..19760a1 100644
--- a/README.org
+++ b/README.org
@@ -5514,7 +5514,10 @@ contrary to for instance [[https://github.com/Fanael/rainbow-delimiters#readme][
     (if arg
         (insert (pp-to-string (eval expression lexical-binding)))
       (pp-display-expression (eval expression lexical-binding)
-                             "*SP Eval Output*"))))
+                             "*SP Eval Output*")))
+
+  ;; Do not change the "M-ESC :" `eval-expression' key binding.
+  (keymap-global-set "M-:" #'sp-eval-expression))
 #+end_src
 
 ** [[https://github.com/davidshepherd7/electric-operator#readme][Electric operators]]