diff --git a/README.md b/README.md
index f327350b..069b6730 100644
--- a/README.md
+++ b/README.md
@@ -538,16 +538,23 @@ configtest:
 ```
 
 And also, configtest subcommand checks sudo settings on target servers whether Vuls is able to SUDO with nopassword via SSH.  
+
 Example of /etc/sudoers on target servers
-- CentOS, Amazon Linux, RedHat Enterprise Linux
+- CentOS, RHEL 5, 6, Amazon Linux
 ```
-vuls ALL=(root) NOPASSWD: /usr/bin/yum
+vuls ALL=(root) NOPASSWD: /usr/bin/yum, /bin/echo
+```
+- CentOS, RHEL 7 - 
+```
+vuls ALL=(root) NOPASSWD: /usr/bin/yum, /usr/bin/echo
 ```
 - Ubuntu, Debian
 ```
 vuls ALL=(root) NOPASSWD: /usr/bin/apt-get, /usr/bin/apt-cache
 ```
 
+
+
 ----
 
 # Usage: Prepare