diff --git a/types/forEach.d.ts b/types/forEach.d.ts
index 90b1ac8..5065e86 100644
--- a/types/forEach.d.ts
+++ b/types/forEach.d.ts
@@ -3,3 +3,5 @@ import { Placeholder } from './util/tools';
 export function forEach<T>(fn: (x: T) => void): <U extends readonly T[]>(list: U) => U;
 export function forEach<U extends readonly any[]>(__: Placeholder, list: U): (fn: (x: U extends readonly (infer T)[] ? T : never) => void) => U;
 export function forEach<U extends readonly any[]>(fn: (x: U extends readonly (infer T)[] ? T : never) => void, list: U): U;
+// this last one is for addIndex(forEach)
+export function forEach<T>(fn: (item: T) => void, list: readonly T[]): T[];