diff --git a/lemp-rhel7/group_vars/all.yml b/lemp-rhel7/group_vars/all.yml
index 3e99524..e8700ff 100644
--- a/lemp-rhel7/group_vars/all.yml
+++ b/lemp-rhel7/group_vars/all.yml
@@ -14,6 +14,7 @@ mysql_root_password_update: yes
 mysql_bind_address: '127.0.0.1'
 mysql_slow_query_log_enabled: yes
 mysql_slow_query_log_file: /var/log/mysql-slow.log
+mysql_pid_file: /var/lib/mysql/mysql.pid
 mysql_slow_query_time: 2
 mysql_max_allowed_packet: "256M"
 mysql_databases: