diff --git a/README b/README
index 25e69ca..01e4398 100644
--- a/README
+++ b/README
@@ -59,6 +59,8 @@ CentOS:
    systemctl enable mariadb
    systemctl start httpd
    systemctl enable httpd
+   echo "extension=redis.so" > /etc/php.d/redis.ini
+   systemctl restart httpd
 
 Alpine:
    apk add apache2 php php-mysql php-redis redis mariadb