diff --git a/defaults/main.yml b/defaults/main.yml
index caedf25..c966bcb 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -23,7 +23,7 @@ mysql_enablerepo: ""
 mysql_port: "3306"
 mysql_bind_address: '0.0.0.0'
 mysql_datadir: /var/lib/mysql
-__mysql_pid_file: /var/run/mysqld/mysqld.pid
+mysql_pid_file: /var/run/mysqld/mysqld.pid
 
 # Slow query log settings.
 mysql_slow_query_log_enabled: no