diff --git a/app/views/exercises/implement.html.slim b/app/views/exercises/implement.html.slim
index 81f39cc0..a9ce3a54 100644
--- a/app/views/exercises/implement.html.slim
+++ b/app/views/exercises/implement.html.slim
@@ -76,7 +76,7 @@
 
           br
           - if session[:lti_parameters].try(:has_key?, 'lis_outcome_service_url')
-            p.text-center = render('editor_button', classes: 'btn-lg btn-success', data: {:'data-url' => submit_exercise_path(@exercise)}, icon: 'fa fa-send', id: 'submit', label: t('exercises.editor.submit'))
+            p.text-center = render('editor_button', classes: 'btn-lg btn-success', data: {:'data-message-confirm' => t('exercises.editor.confirm_submit'), :'data-url' => submit_exercise_path(@exercise)}, icon: 'fa fa-send', id: 'submit', label: t('exercises.editor.submit'))
 
   - if qa_url
     #questions-column