diff --git a/test/model.js b/test/model.js
index adce36ba..b7eeea7c 100644
--- a/test/model.js
+++ b/test/model.js
@@ -94,8 +94,10 @@ $(document).ready(function() {
   test("Model: isNew", function() {
     a = new Backbone.Model({ 'foo': 1, 'bar': 2, 'baz': 3});
     ok(a.isNew(), "it should be new");
+    a = new Backbone.Model({ 'foo': 1, 'bar': 2, 'baz': 3, 'id': 2 });
+    ok(!a.isNew(), "any defined ID is legal, positive integer");
     a = new Backbone.Model({ 'foo': 1, 'bar': 2, 'baz': 3, 'id': -5 });
-    ok(!a.isNew(), "any defined ID is legal, negative or positive");
+    ok(!a.isNew(), "any defined ID is legal, negative integer");
   });
 
   test("Model: get", function() {