diff --git a/bin/setup-wp.php b/bin/setup-wp.php
index 9e8e4820c..c2f011e9b 100644
--- a/bin/setup-wp.php
+++ b/bin/setup-wp.php
@@ -23,7 +23,7 @@
 $env = $dotenv->load();
 
 $mysqlServer = new MysqlServer(
-    codecept_output_dir('_mysql-server'),
+    codecept_output_dir('_mysql_server'),
     $_ENV['WORDPRESS_DB_LOCALHOST_PORT'],
     $_ENV['WORDPRESS_DB_NAME'],
     $_ENV['WORDPRESS_DB_USER'],