diff --git a/wttrin.el b/wttrin.el
index 512b6a7..0c9dbe5 100644
--- a/wttrin.el
+++ b/wttrin.el
@@ -27,7 +27,7 @@
   :group 'wttrin
   :type 'list)
 
-(defcustom wttrin-default-accept-language '("Accept-Language" . "en-US,en;q=0.8,zh-CN;q=0.6,zh;q=0.4")
+(defcustom wttrin-default-accept-language "en-US,en;q=0.8,zh-CN;q=0.6,zh;q=0.4"
   "Specify default HTTP request Header for Accept-Language."
   :group 'wttrin
   :type '(list)
@@ -35,8 +35,8 @@
 
 (defun wttrin-fetch-raw-string (query)
   "Get the weather information based on your QUERY."
-  (let ((url-request-extra-headers '(("User-Agent" . "curl"))))
-    (add-to-list 'url-request-extra-headers wttrin-default-accept-language)
+  (let ((url-user-agent "curl")
+	(url-mime-language-string wttrin-default-accept-language))
     (with-current-buffer
         (url-retrieve-synchronously
          (concat "http://wttr.in/" query)