diff --git a/app/controllers/files_controller.rb b/app/controllers/files_controller.rb
index fe5eb48..7868d0d 100644
--- a/app/controllers/files_controller.rb
+++ b/app/controllers/files_controller.rb
@@ -26,7 +26,7 @@ class FilesController < ApplicationController
       attachments = Attachment.attach_files(container, params[:attachments])
       render_attachment_warning_if_needed(container)
 
-      if !attachments.empty? && Setting.notified_events.include?('file_added')
+      if !attachments.empty? && !attachments[:files].blank? && Setting.notified_events.include?('file_added')
         Mailer.deliver_attachments_added(attachments[:files])
       end
       redirect_to :controller => 'files', :action => 'index', :id => @project