diff --git a/addon/utils/option-loader.js b/addon/utils/option-loader.js
index <HASH>..<HASH> 100644
--- a/addon/utils/option-loader.js
+++ b/addon/utils/option-loader.js
@@ -4,8 +4,10 @@ let localConfig = null;
 export function setDefaultHighChartOptions(owner) {
   if (!localConfig) {
     // use options defined in highcharts-configs/application.js if they exist
-    let localConfigBuilder = owner._lookupFactory('highcharts-config:application');
-    if (localConfigBuilder) {
+    let configFactory = owner.factoryFor('highcharts-config:application');
+
+    if (configFactory && configFactory.class) {
+      let localConfigBuilder = configFactory.class;
       localConfig = localConfigBuilder(defaultOptions);
     } else {
       localConfig = defaultOptions;
Replace _lookupFactory() with factoryFor() (#<I>)