diff --git a/app/controllers/dmails_controller.rb b/app/controllers/dmails_controller.rb
index dd31feaf1..c57f2ab82 100644
--- a/app/controllers/dmails_controller.rb
+++ b/app/controllers/dmails_controller.rb
@@ -53,6 +53,7 @@ class DmailsController < ApplicationController
     Dmail.visible.unread.each do |x|
       x.update_column(:is_read, true)
     end
+    CurrentUser.user.update_column(:has_mail, false)
   end
 
 private