diff --git a/packages/types/src/integration.ts b/packages/types/src/integration.ts
index 19df0b9e67c2..0e60b7a530ee 100644
--- a/packages/types/src/integration.ts
+++ b/packages/types/src/integration.ts
@@ -36,5 +36,5 @@ export interface Integration {
    * Return `null` to drop the event, or mutate the event & return it.
    * This receives the client that the integration was installed for as third argument.
    */
-  processEvent?(event: Event, hint: EventHint | undefined, client: Client): Event | null | PromiseLike<Event | null>;
+  processEvent?(event: Event, hint: EventHint, client: Client): Event | null | PromiseLike<Event | null>;
 }