diff --git a/longs/templates/longs/mark_answer.html b/longs/templates/longs/mark_answer.html
index e1ec74f6..bb3f7c29 100644
--- a/longs/templates/longs/mark_answer.html
+++ b/longs/templates/longs/mark_answer.html
@@ -9,7 +9,10 @@
         title="View question answers">{{question_details.current}}</a> of {{question_details.total}}</h2>
         
 <div>
+    <details>
+    <summary>Mark Scheme</summary>
     {{ question.mark_scheme | safe}}
+    </details>
 </div>
 <div>
     <div class="long-answer">