diff --git a/app/services/notice/write/create_service.rb b/app/services/notice/write/create_service.rb
index 8dfc88483..bdf8e0923 100644
--- a/app/services/notice/write/create_service.rb
+++ b/app/services/notice/write/create_service.rb
@@ -1,7 +1,7 @@
 class Notice::Write::CreateService < Notice::Write::ClientService 
   attr_accessor :receivers, :sender, :content, :notification_url, :source, :extra, :type
 
-  def initialize(receivers, content, notification_url, source, extra={}, type=1, sender=-1)
+  def initialize(receivers, content, notification_url, source, extra={}, type=1, sender=1)
     @receivers = receivers
     @sender = sender 
     @content = content