diff --git a/app/views/subjects/right_banner.json.jbuilder b/app/views/subjects/right_banner.json.jbuilder
index ef5645f26..f9a52af83 100644
--- a/app/views/subjects/right_banner.json.jbuilder
+++ b/app/views/subjects/right_banner.json.jbuilder
@@ -1,4 +1,4 @@
-json.qrcode_img Util::FileManage.exists?(@subject, '_qrcode') ? Util::FileManage.source_disk_file_url(@subject, '_qrcode') : nil
+json.qrcode_img nil
 
 json.members @members do |member|
   json.partial! 'subject_member', locals: { user: member.user }