diff --git a/generic/views.py b/generic/views.py
index e6ba3610..f60b79ae 100644
--- a/generic/views.py
+++ b/generic/views.py
@@ -478,7 +478,7 @@ class ExamViews(View, LoginRequiredMixin):
 
         with open(path, "w+") as f:
             exam_json = exam.get_exam_json()
-            exam_json["generated"] = time.isoformat()
+            exam_json["generated"] = "test"+time.isoformat()
             f.write(json.dumps(exam_json))
 
         exam.recreate_json = False
diff --git a/longs/templates/longs/mark_answer.html b/longs/templates/longs/mark_answer.html
index e2d7c0da..39184adb 100644
--- a/longs/templates/longs/mark_answer.html
+++ b/longs/templates/longs/mark_answer.html
@@ -44,9 +44,9 @@
 <div class="marking">
     <form method="POST" class="post-form">{% csrf_token %}
         {{ form.as_p }}
-        <button type="submit" name="save" class="save btn btn-default">Save</button>
+        <button type="submit" name="save" class="save btn btn-default" title="Save answer">Save</button>
         {% if next_unmarked_id %}
-        <button type="submit" name="next" class="save btn btn-default">Next</button>
+        <button type="submit" name="next" class="save btn btn-default" title="Save answer and move to next question">Next answer</button>
         <!-- <button type="submit" name="skip" class="save btn btn-default">Skip</button> -->
         {% else %}
         (no more answers for this question to mark)