diff --git a/.changeset/wicked-worms-march.md b/.changeset/wicked-worms-march.md
new file mode 100644
index 000000000..6df1dda10
--- /dev/null
+++ b/.changeset/wicked-worms-march.md
@@ -0,0 +1,5 @@
+---
+'@guardian/commercial': patch
+---
+
+fix header-bidding test id
diff --git a/src/experiments/tests/new-header-bidding-endpoint.ts b/src/experiments/tests/new-header-bidding-endpoint.ts
index 33c1e9415..6744dedbc 100644
--- a/src/experiments/tests/new-header-bidding-endpoint.ts
+++ b/src/experiments/tests/new-header-bidding-endpoint.ts
@@ -1,7 +1,7 @@
 import type { ABTest } from '@guardian/ab-core';
 
 export const newHeaderBiddingEndpoint: ABTest = {
-	id: 'newHeaderBiddingEndpoint',
+	id: 'NewHeaderBiddingEndpoint',
 	author: '@commercial-dev',
 	start: '2024-11-11',
 	expiry: '2024-11-30',