diff --git a/index.d.ts b/index.d.ts
index 1b979d7..c4d8e82 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -159,7 +159,7 @@ export default class Queue extends EventTarget {
      */
     start(callback: (error?: Error, results?: any[] | null) => void): void;
 
-    start(): Promise<{ error?: Error, results?: any[] | null }>;
+    start(): Promise<any[] | null>;
 
     start(): void;