diff --git a/src/lib/dom.iterable.d.ts b/src/lib/dom.iterable.d.ts
index fb862376a24..35afb0ddd5c 100644
--- a/src/lib/dom.iterable.d.ts
+++ b/src/lib/dom.iterable.d.ts
@@ -8,7 +8,7 @@ interface NodeList {
     keys(): IterableIterator<number>;
     values(): IterableIterator<[number, Node]>;
     entries(): IterableIterator<Node>;
-    forEach(): void;
+    forEach(callbackfn: (value: Node, index: number, listObj: NodeList) => void, thisArg?: any): void;
     [Symbol.iterator](): IterableIterator<Node>
 }
 
@@ -16,6 +16,6 @@ interface NodeListOf<TNode extends Node> {
     keys(): IterableIterator<number>;
     values(): IterableIterator<[number, TNode]>;
     entries(): IterableIterator<TNode>;
-    forEach(): void;
+    forEach(callbackfn: (value: TNode, index: number, listObj: NodeListOf<TNode>) => void, thisArg?: any): void;    
     [Symbol.iterator](): IterableIterator<TNode>
 }