diff --git a/dicom-viewer/index.html b/dicom-viewer/index.html
index 1bc9d01..0a3e6c5 100644
--- a/dicom-viewer/index.html
+++ b/dicom-viewer/index.html
@@ -61,6 +61,7 @@
   data-named-stacks='[
     {
       "caseId": "CASE-001",
+      "stackId": "STACK-001",
       "stacks": [
         {
           "name": "Abdomen - Portal Venous",
@@ -79,6 +80,7 @@
     },
     {
       "caseId": "CASE-002",
+      "stackId": "STACK-002",
       "stacks": [
         {
           "name": "Chest - CTA",