diff --git a/mysql/README.md b/mysql/README.md
index 48652b4c..e8a8399f 100644
--- a/mysql/README.md
+++ b/mysql/README.md
@@ -18,7 +18,7 @@ Tasks are extracted in several files, included in `tasks/main.yml` :
 
 ## Available variables
 
-* `mysql_use_mariadb` : use mariadb-server-10.0 instead of mysql-server ;
+* `mysql_variant` : install Oracle's MySQL or MariaDB (default: `oracle`) ;
 * `mysql_replace_root_with_mysqladmin`: switch from `root` to `mysqladmin` user or not ;
 * `mysql_thread_cache_size`: number of threads for the cache ;
 * `mysql_innodb_buffer_pool_size`: amount of RAM dedicated to InnoDB ;
@@ -28,5 +28,6 @@ Tasks are extracted in several files, included in `tasks/main.yml` :
 * `log2mail_alert_email`: email address to send Log2mail messages to (default: `general_alert_email`).
 * `general_scripts_dir`: general directory for scripts installation (default: `/usr/local/bin`).
 * `mysql_scripts_dir`: email address to send Log2mail messages to (default: `general_scripts_dir`).
+* `mysql_force_new_nrpe_password` : change the password for NRPE even if it exists already (default: `False`).
 
 NB : changing the _datadir_ location can be done multiple times, as long as it is not restored to the default initial location, (because a symlink is created  and can't be switched back, yet).