diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7285156..ab42f72 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # ember-cli-google-analytics Changelog
 
+### Master
+
+* [BUGFIX] Mixin would not fire unless the `googleAnalytics.tracker` configuration option was explicitly set. It now defaults to `analytics.js` when no value is set.
+* [BUGFIX] Mixin used hard-coded `ga` global variable when using the analytics.js tracker. It will now use the value set in the `googleAnalytics.globalVariable` configuration option, or `ga` if no value is set.
+
 ### v1.3.0
 
 * Added a mixin that can be included in the applications Router that will trigger the Google Analytics pageview when transitioning between routes.
diff --git a/app/mixins/google-pageview.js b/app/mixins/google-pageview.js
index 17b95df..a2192f6 100644
--- a/app/mixins/google-pageview.js
+++ b/app/mixins/google-pageview.js
@@ -4,10 +4,12 @@ import ENV from '../config/environment';
 export default Ember.Mixin.create({
   pageviewToGA: function() {
     if (Ember.get(ENV, 'googleAnalytics.webPropertyId') != null) {
-      var trackerType = Ember.get(ENV, 'googleAnalytics.tracker');
+      var trackerType = Ember.getWithDefault(ENV, 'googleAnalytics.tracker', 'analytics.js');
 
       if (trackerType === 'analytics.js') {
-        window.ga('send', 'pageview', {
+        var globalVariable = Ember.getWithDefault(ENV, 'googleAnalytics.globalVariable', 'ga');
+
+        window[globalVariable]('send', 'pageview', {
           'page': this.get('url'),
           'title': this.get('url')
         });