diff --git a/atlas/templates/atlas/collection_viva_series.html b/atlas/templates/atlas/collection_viva_series.html
index 9d63e759..76ecce59 100644
--- a/atlas/templates/atlas/collection_viva_series.html
+++ b/atlas/templates/atlas/collection_viva_series.html
@@ -16,7 +16,7 @@
         </style>
 </head>
 <body>
-    <iframe id="viewer" style="width: 100%; height: 100%; border: none; padding: 0px;" src="/ohif/viewer/dicomjson?url=https://www.penracourses.org.uk{% url 'atlas:case_dicom_json' current_case.pk %}"></iframe>
+    <iframe id="viewer" style="width: 100%; height: 100%; border: none; padding: 0px;" src="/ohif/viewer/dicomjson?url=https://www.penracourses.org.uk{% url 'atlas:series_dicom_json' current_series.pk %}"></iframe>
 
     <script type="text/javascript">
         var win2 = false;
