diff --git a/packages/classic-test-app/app/authenticators/oauth2.js b/packages/classic-test-app/app/authenticators/oauth2.js
index f87a98600..824785b41 100644
--- a/packages/classic-test-app/app/authenticators/oauth2.js
+++ b/packages/classic-test-app/app/authenticators/oauth2.js
@@ -1,7 +1,7 @@
 import OAuth2PasswordGrant from 'ember-simple-auth/authenticators/oauth2-password-grant';
 import config from '../config/environment';
 
-export default OAuth2PasswordGrant.extend({
-  serverTokenEndpoint: `${config.apiHost}/token`,
-  serverTokenRevocationEndpoint: `${config.apiHost}/revoke`,
-});
+export default class OAuth2 extends OAuth2PasswordGrant {
+  serverTokenEndpoint = `${config.apiHost}/token`;
+  serverTokenRevocationEndpoint = `${config.apiHost}/revoke`;
+}
diff --git a/packages/classic-test-app/app/components/login-form.js b/packages/classic-test-app/app/components/login-form.js
index cb8d5abe3..cc55f925f 100644
--- a/packages/classic-test-app/app/components/login-form.js
+++ b/packages/classic-test-app/app/components/login-form.js
@@ -13,9 +13,10 @@ export default Component.extend({
       await this.get('session').authenticate('authenticator:oauth2', identification, password);
 
       if (this.rememberMe) {
-        this.get('session').set('store.cookieExpirationTime', 60 * 60 * 24 * 14);
+        this.get('session').set('cookieExpirationTime', 60 * 60 * 24 * 14);
       }
     } catch (response) {
+      console.error(response.toString());
       this.set('errorMessage', response.toString());
     }
   }),