diff --git a/lib/ember-test-helpers/isolated-container.js b/lib/ember-test-helpers/isolated-container.js
index f5dfc3b2b..4b95168cc 100644
--- a/lib/ember-test-helpers/isolated-container.js
+++ b/lib/ember-test-helpers/isolated-container.js
@@ -4,6 +4,15 @@ import Ember from 'ember';
 export default function isolatedContainer(fullNames) {
   var resolver = getResolver();
   var container = new Ember.Container();
+  var normalize = function(fullName) {
+    return resolver.normalize(fullName);
+  };
+  //normalizeFullName only exists since Ember 1.9
+  if (Ember.typeOf(container.normalizeFullName) === 'function') {
+    container.normalizeFullName = normalize;
+  } else {
+    container.normalize = normalize;
+  }
   container.optionsForType('component', { singleton: false });
   container.optionsForType('view', { singleton: false });
   container.optionsForType('template', { instantiate: false });