diff --git a/app/models/comment.rb b/app/models/comment.rb
index bdb642d3c..1f6655bc4 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -27,7 +27,7 @@ class Comment < ActiveRecord::Base
 
   def send_mail
     if self.commented.is_a?(News) && Setting.notified_events.include?('news_comment_added')
-      Mailer.run.news_comment_added(self)
+      Mailer.news_comment_added(self)
     end
   end
   after_destroy :delete_kindeditor_assets