diff --git a/app/views/graduation_tasks/_public_navigation.json.jbuilder b/app/views/graduation_tasks/_public_navigation.json.jbuilder
index 00280c31b..992d03fd8 100644
--- a/app/views/graduation_tasks/_public_navigation.json.jbuilder
+++ b/app/views/graduation_tasks/_public_navigation.json.jbuilder
@@ -2,4 +2,5 @@ json.partial! "graduation_topics/show_navigation", locals: {course: course, grad
 json.task_status task_curr_status(graduation, course)[:status]
 json.task_name graduation.name
 json.task_id graduation.id
-json.status graduation.status
\ No newline at end of file
+json.status graduation.status
+json.end_time graduation.end_time
\ No newline at end of file