diff --git a/fetch.js b/fetch.js
index 15cc1c611ddaa559092437bab2ff8cae056f1cd4..68db677d34c10874e789adce16c7b990bce82565 100644
--- a/fetch.js
+++ b/fetch.js
@@ -357,9 +357,9 @@
     }
 
     this.type = 'default'
-    this.status = options.status
+    this.status = 'status' in options ? options.status : 200
     this.ok = this.status >= 200 && this.status < 300
-    this.statusText = options.statusText
+    this.statusText = 'statusText' in options ? options.statusText : 'OK'
     this.headers = new Headers(options.headers)
     this.url = options.url || ''
     this._initBody(bodyInit)
diff --git a/test/test.js b/test/test.js
index cd4c433fe6bad7ecba4e3146f83f71391e12485f..2aa727e081d12735f3c704d6a4adc23fe31fb962 100644
--- a/test/test.js
+++ b/test/test.js
@@ -464,6 +464,13 @@ suite('Request', function() {
 
 // https://fetch.spec.whatwg.org/#response-class
 suite('Response', function() {
+  test('default status is 200 OK', function() {
+    var res = new Response()
+    assert.equal(res.status, 200)
+    assert.equal(res.statusText, 'OK')
+    assert.isTrue(res.ok)
+  })
+
   // https://fetch.spec.whatwg.org/#concept-bodyinit-extract
   suite('BodyInit extract', function() {
     featureDependent(suite, support.blob, 'type Blob', function() {