diff --git a/webdata/controllers/IndexController.php b/webdata/controllers/IndexController.php
index 9577fa3..14bcb03 100644
--- a/webdata/controllers/IndexController.php
+++ b/webdata/controllers/IndexController.php
@@ -67,7 +67,7 @@ public function searchAction()
 
     public function healthAction()
     {
-        header('Content-Type: text/plain');
+        header('Content-Type: text/plain; charset=utf-8');
 
         $ret = array();
         $check_time = 30; // 幾分鐘沒有從列表抓到任何新聞就要警告