diff --git a/atlas/templates/atlas/case_display_block.html b/atlas/templates/atlas/case_display_block.html
index b61be31c..c0a112e7 100755
--- a/atlas/templates/atlas/case_display_block.html
+++ b/atlas/templates/atlas/case_display_block.html
@@ -25,9 +25,16 @@
 
         <details><summary>Details</summary>
             <br/>
-            Case uuid: {{case.cimar_uuid}}
+            Case uuid: {{case.cimar_uuid}} / {{cimar_sid}}
             <br/>
-            <a href="{{case.get_cimar_case.viewer_link}}?{{cimar_sid}}" target="_blank">External</a>
+            
+            {% if cimar_sid %}
+            <a href="{{case.get_cimar_case.viewer_link}}?sid={{cimar_sid}}" target="_blank">External</a>
+            {% else %}
+            <a href="{{case.get_cimar_case.viewer_link}}" target="_blank">External</a>
+                
+            {% endif %}
+                
 
 <button
     hx-get='{% url "cimar_study_viewer_embed" case.cimar_uuid %}'