diff --git a/lib/index.js b/lib/index.js
index 12f0038..3b2e06a 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,3 +1,19 @@
+// Support old versions of Ember CLI.
+function findHost() {
+  var current = this;
+  var app;
+
+  // Keep iterating upward until we don't have a grandparent.
+  // Has to do this grandparent check because at some point we hit the project.
+  // Stop at lazy engine boundaries.
+  do {
+    if (current.lazyLoading === true) { return current; }
+    app = current.app || app;
+  } while (current.parent && current.parent.parent && (current = current.parent));
+
+  return app;
+}
+
 module.exports = {
   name: 'ember-browserify',
 
@@ -12,11 +28,7 @@ module.exports = {
       newImportApi = true;
     }
 
-    // Stop-gap measure to support another addon
-    // consuming this addon. https://github.com/ef4/ember-browserify/issues/29
-    if (typeof app.import !== 'function' && app.app) {
-      app = app.app;
-    }
+    app = findHost.call(this);
 
     var enableSourcemaps = app.options.sourcemaps && app.options.sourcemaps.enabled && app.options.sourcemaps.extensions.indexOf('js') > -1;