diff --git a/library/think/App.php b/library/think/App.php
index ca6e4536..6daf7300 100644
--- a/library/think/App.php
+++ b/library/think/App.php
@@ -366,7 +366,7 @@ class App
             self::$debug = Config::get('app_debug');
             if (!self::$debug) {
                 ini_set('display_errors', 'Off');
-            } else {
+            } elseif (!IS_CLI) {
                 //重新申请一块比较大的buffer
                 if (ob_get_level() > 0) {
                     $output = ob_get_clean();