diff --git a/src/components/CheckIn/TableRow.tsx b/src/components/CheckIn/TableRow.tsx
index b2bd6e11cb..b273dbdd84 100644
--- a/src/components/CheckIn/TableRow.tsx
+++ b/src/components/CheckIn/TableRow.tsx
@@ -73,7 +73,9 @@ export const TableRow = ({
       inputs.push({ name: data.name.trim() });
       const pdf = await generate({ template: tagTemplate, inputs });
       // istanbul ignore next
-      const blob = new Blob([pdf.buffer], { type: 'application/pdf' });
+      // Convert ArrayBuffer to Uint8Array before creating Blob
+      const uint8Array = new Uint8Array(pdf.buffer);
+      const blob = new Blob([uint8Array], { type: 'application/pdf' });
       // istanbul ignore next
       const url = URL.createObjectURL(blob);
       // istanbul ignore next