diff --git a/buildout/mysql-instance/templates/my.cnf.in b/buildout/mysql-instance/templates/my.cnf.in
index ee52250b5a88b809d0d8ab17f608d5917d3d925d..db8aed807809caf939bab971caee8ddbb721bdcb 100644
--- a/buildout/mysql-instance/templates/my.cnf.in
+++ b/buildout/mysql-instance/templates/my.cnf.in
@@ -9,6 +9,9 @@ socket = ${configuration:mysql_sock}
 [mysqld]
 port = ${configuration:mysql_port}
 socket = ${configuration:mysql_sock}
+datadir = ${configuration:mysql_datadir}
+pid-file = ${configuration:mysql_pid}
+log-error = ${configuration:mysql_error_log}
 skip-locking
 key_buffer = 384M
 max_allowed_packet = 1M