diff --git a/README.md b/README.md
index d523f43..0c3a427 100644
--- a/README.md
+++ b/README.md
@@ -3,5 +3,6 @@
 
 ## 実行する方法
 ```sh
+mv config.sample.php config.php
 php -S 127.0.0.1:8000
 ```