diff --git a/app/mailers/scrap_notifier.rb b/app/mailers/scrap_notifier.rb
index 232a6d9..8b4986d 100644
--- a/app/mailers/scrap_notifier.rb
+++ b/app/mailers/scrap_notifier.rb
@@ -1,4 +1,4 @@
-class ScrapNotifier < ActionMailer::Base
+class Scrap::Notifier < ActionMailer::Base
   def notification(scrap)
     sender, receiver = scrap.sender, scrap.receiver
     @recipient = receiver.name
diff --git a/app/models/scrap.rb b/app/models/scrap.rb
index 362d696..c1a48f5 100644
--- a/app/models/scrap.rb
+++ b/app/models/scrap.rb
@@ -25,7 +25,7 @@ class Scrap < ActiveRecord::Base
 
   after_create do |scrap|
     scrap.root.update_attribute('updated_at', DateTime.now) unless scrap.root.nil?
-    ScrapNotifier.notification(scrap).deliver if scrap.send_notification?
+    Scrap::Notifier.notification(scrap).deliver if scrap.send_notification?
   end
 
   before_validation :strip_all_html_tags
--
libgit2 0.21.2