diff --git a/start.php b/start.php
index 1d73987b..8aa7a11a 100644
--- a/start.php
+++ b/start.php
@@ -43,9 +43,9 @@ if (APP_HOOK && isset($mode['tags'])) {
 }
 
 // 自动生成
-if ('sae' != APP_MODE && is_file(APP_PATH . 'build.php')) {
+if (APP_AUTO_BUILD && is_file(APP_PATH . 'build.php')) {
     Create::build(include APP_PATH . 'build.php');
 }
-Loader::addNamespace('tests',TEST_PATH);
+Loader::addNamespace('tests', TEST_PATH);
 // 执行应用
 !IN_UNIT_TEST && App::run();