diff --git a/anatomy/templates/anatomy/mark.html b/anatomy/templates/anatomy/mark.html
index 90420b1c..d6fb095c 100644
--- a/anatomy/templates/anatomy/mark.html
+++ b/anatomy/templates/anatomy/mark.html
@@ -5,7 +5,7 @@
 <a href="{% url 'anatomy:anatomy_question_update' question.id %}" title="Edit the Question">Edit</a> <a href="{% url 'admin:anatomy_anatomyquestion_change' question.id %}" title="Edit the Question using the admin interface">Admin Edit</a>
 <h3>{{ question.question_type }}</h3>
 
-<div id="dicom-image" class="marking-dicom" data-url="{{ question.image.url}}" data-annotations='{{question.image_annotations}}'>
+<div id="dicom-image" class="marking-dicom" data-url="http://penracourses.org.uk{{ question.image.url}}" data-annotations='{{question.image_annotations}}'>
 </div>
 <div class="marking">
 <form method="POST" class="post-form">{% csrf_token %}