diff --git a/types/ember/test/access-modifier.ts b/types/ember/test/access-modifier.ts
new file mode 100644
index 0000000000..5e998f72d3
--- /dev/null
+++ b/types/ember/test/access-modifier.ts
@@ -0,0 +1,20 @@
+import Ember from 'ember';
+import { assertType } from './lib/assert';
+
+class Foo extends Ember.Object {
+    hello() { return 'world'; }
+    protected bar() { return 'bar'; }
+    private baz() { return 'baz'; }
+}
+const f = new Foo();
+assertType<string>(f.hello());
+assertType<string>(f.bar()); // $ExpectError
+assertType<string>(f.baz()); // $ExpectError
+
+class Foo2 extends Ember.Object.extend({
+    bar: ''
+}) {
+    hello() { return 'world'; }
+    protected bar() { return 'bar'; } // $ExpectError
+    private baz() { return 'baz'; }
+}
diff --git a/types/ember/tsconfig.json b/types/ember/tsconfig.json
index 2d8e635104..4ff7e7bf07 100755
--- a/types/ember/tsconfig.json
+++ b/types/ember/tsconfig.json
@@ -22,6 +22,7 @@
         "index.d.ts",
         "test/lib/assert.ts",
         "test/application.ts",
+        "test/access-modifier.ts",
         "test/application-instance.ts",
         "test/engine-instance.ts",
         "test/ember-tests.ts",