diff --git a/packages/core-services/src/events/Events.ts b/packages/core-services/src/events/Events.ts
index b01d87301ccb..e5de3a7f0681 100644
--- a/packages/core-services/src/events/Events.ts
+++ b/packages/core-services/src/events/Events.ts
@@ -92,7 +92,6 @@ export type EventSignatures = {
 		},
 	): void;
 	'notify.deleteCustomSound'(data: { soundData: ICustomSound }): void;
-	'notify.deleteCustomSound'(data: { soundData: ICustomSound }): void;
 	'notify.updateCustomSound'(data: { soundData: ICustomSound }): void;
 	'notify.calendar'(uid: string, data: ICalendarNotification): void;
 	'permission.changed'(data: { clientAction: ClientAction; data: any }): void;