diff --git a/app/controllers/announcement_feeds_controller.rb b/app/controllers/announcement_feeds_controller.rb
index 2e6b2db..098c8f7 100644
--- a/app/controllers/announcement_feeds_controller.rb
+++ b/app/controllers/announcement_feeds_controller.rb
@@ -85,8 +85,8 @@ class AnnouncementFeedsController < ApplicationController
 			a["id"] = anns.uid
 			a["title_translations"] = anns.title_translations
 			a["subtitle_translations"] = anns.subtitle_translations
-			a["text_translations"]["en"] = smart_convertor(anns.text_translations["en"])
-			a["text_translations"]["zh_tw"] = smart_convertor(anns.text_translations["zh_tw"])
+			a["text_translations"]["en"] = smart_convertor(anns.text_translations["en"]) if !anns.text_translations["en"].blank?
+			a["text_translations"]["zh_tw"] = smart_convertor(anns.text_translations["zh_tw"]) if !anns.text_translations["zh_tw"].blank?
 			a["postdate"] = anns.postdate
 			a["image_description_translations"] = anns.image_description_translations
 			a["image"] = {}