diff --git a/frontend/src/components/common/html-to-react/html-to-react.spec.tsx b/frontend/src/components/common/html-to-react/html-to-react.spec.tsx
index 6c6f18dcb..2c74c1f04 100644
--- a/frontend/src/components/common/html-to-react/html-to-react.spec.tsx
+++ b/frontend/src/components/common/html-to-react/html-to-react.spec.tsx
@@ -34,7 +34,7 @@ describe('HTML to React', () => {
         parserOptions={{
           transform: () => {
             transformerVisited = true
-            return <p>Hijacked!</p>
+            return <p key={1}>Hijacked!</p>
           },
           preprocessNodes: (document) => {
             preprocessNodesVisited = true