diff --git a/index.php b/index.php
index 444fd925..659083b2 100644
--- a/index.php
+++ b/index.php
@@ -80,6 +80,7 @@ try {
     $user = _get_user();
     send_event(new UserLoginEvent($user));
     if (PHP_SAPI === 'cli' || PHP_SAPI == 'phpdbg') {
+        ob_end_flush();
         send_event(new CommandEvent($argv));
     } else {
         send_event(new PageRequestEvent($_SERVER['REQUEST_METHOD'], _get_query()));