diff --git a/service_worker_api/index.d.ts b/service_worker_api/index.d.ts
index 6084efc4a0..a608cb7b84 100644
--- a/service_worker_api/index.d.ts
+++ b/service_worker_api/index.d.ts
@@ -305,7 +305,7 @@ interface Cache {
      *
      * @param request An array of Request objects you want to add to the cache.
      */
-    addAll(...request: Array<Request | string>): Promise<void>;
+    addAll(requests: Array<Request | string>): Promise<void>;
 
     /**
      * Adds additional key/value pairs to the current Cache object.
diff --git a/service_worker_api/service_worker_api-test.ts b/service_worker_api/service_worker_api-test.ts
index 6b175df9a0..3f160654c7 100644
--- a/service_worker_api/service_worker_api-test.ts
+++ b/service_worker_api/service_worker_api-test.ts
@@ -35,7 +35,7 @@ self.addEventListener('install', function(event: InstallEvent) {
 self.addEventListener('install', function(event: InstallEvent) {
     event.waitUntil(
         self.caches.open('v1').then(function(cache) {
-            return cache.addAll(
+            return cache.addAll([
                 '/sw-test/',
                 '/sw-test/index.html',
                 '/sw-test/style.css',
@@ -46,7 +46,7 @@ self.addEventListener('install', function(event: InstallEvent) {
                 '/sw-test/gallery/bountyHunters.jpg',
                 '/sw-test/gallery/myLittleVader.jpg',
                 '/sw-test/gallery/snowTroopers.jpg'
-            );
+            ]);
         })
     );
 });