diff --git a/kernel/model/updater.go b/kernel/model/updater.go
index 09f19f45e..f8cdc38f9 100644
--- a/kernel/model/updater.go
+++ b/kernel/model/updater.go
@@ -199,6 +199,10 @@ func GetAnnouncements() (ret []*Announcement) {
 		return
 	}
 
+	if nil == result["announcement"] {
+		return
+	}
+
 	announcements := result["announcement"].([]interface{})
 	for _, announcement := range announcements {
 		ann := announcement.(map[string]interface{})