diff --git a/lib/routes/icable/category.js b/lib/routes/icable/category.js
index caa4bbf901..daf933556e 100644
--- a/lib/routes/icable/category.js
+++ b/lib/routes/icable/category.js
@@ -50,7 +50,7 @@ module.exports = async (ctx) => {
         author: '有線新聞',
         category: item.group_name,
         description: desc(item, option),
-        pubDate: timezone(new Date(`${item.created_at}`), +8),
+        pubDate: timezone(new Date(String(item.created_at)), +8),
         guid: item.id,
         link: `http://cablenews.i-cable.com/ci/news/article/37/${item.id}`,
     }));