diff --git a/.changeset/itchy-pandas-punch.md b/.changeset/itchy-pandas-punch.md
new file mode 100644
index 00000000000..622778d8c7b
--- /dev/null
+++ b/.changeset/itchy-pandas-punch.md
@@ -0,0 +1,5 @@
+---
+"@thirdweb-dev/service-utils": patch
+---
+
+fix: wrong casing on a field in webhook event helper
diff --git a/packages/service-utils/src/node/webhookProducer.ts b/packages/service-utils/src/node/webhookProducer.ts
index c93cd5d1a2c..f4d521feaff 100644
--- a/packages/service-utils/src/node/webhookProducer.ts
+++ b/packages/service-utils/src/node/webhookProducer.ts
@@ -51,7 +51,7 @@ export class WebhookEventProducer {
       return {
         ...event,
         // Default to now.
-        created_at: event.createdAt ?? new Date(),
+        createdAt: event.createdAt ?? new Date(),
         // Default to a generated UUID.
         id: event.id ?? `evt_${createId()}`,
       };