diff --git a/app/views/issues/_simple_issue_item.json.jbuilder b/app/views/issues/_simple_issue_item.json.jbuilder
index a93582a8a..f711253a4 100644
--- a/app/views/issues/_simple_issue_item.json.jbuilder
+++ b/app/views/issues/_simple_issue_item.json.jbuilder
@@ -1,10 +1,10 @@
-json.name issue.subject
-json.created_at format_time(issue.created_on)
-json.updated_at format_time(issue.updated_on)
-json.assign_user_name issue.get_assign_user.try(:show_real_name)
-json.assign_user_login issue.get_assign_user.try(:login)
-json.issue_journal_size issue.get_journals_size
-journals = issue.only_reply_journals
+json.name issue.try(:subject)
+json.created_at format_time(issue.try(:created_on))
+json.updated_at format_time(issue.try(:updated_on))
+json.assign_user_name issue&.get_assign_user.try(:show_real_name)
+json.assign_user_login issue&.get_assign_user.try(:login)
+json.issue_journal_size issue&.get_journals_size
+journals = issue&.only_reply_journals
 
 json.issue_journals do
   json.array! journals.to_a.each do |j|