diff --git a/src/components/announcement/announcement.js b/src/components/announcement/announcement.js
index 1cfd3d58..c10c7d90 100644
--- a/src/components/announcement/announcement.js
+++ b/src/components/announcement/announcement.js
@@ -34,7 +34,7 @@ const Announcement = {
       return this.announcement.read
     },
     publishedAt () {
-      const time = this.announcement['published_at']
+      const time = this.announcement.published_at
       if (!time) {
         return
       }