diff --git a/packages/app-layout/test/app-layout-lit.test.js b/packages/app-layout/test/app-layout-lit.test.js
index a420384cd98..77c14cf810f 100644
--- a/packages/app-layout/test/app-layout-lit.test.js
+++ b/packages/app-layout/test/app-layout-lit.test.js
@@ -1,3 +1,4 @@
+import './not-animated-styles.js';
 import '../src/vaadin-lit-app-layout.js';
 import '../src/vaadin-lit-drawer-toggle.js';
 import './app-layout.common.js';
diff --git a/packages/app-layout/test/app-layout-polymer.test.js b/packages/app-layout/test/app-layout-polymer.test.js
index c7bf966fc14..fc29d71f241 100644
--- a/packages/app-layout/test/app-layout-polymer.test.js
+++ b/packages/app-layout/test/app-layout-polymer.test.js
@@ -1,3 +1,4 @@
+import './not-animated-styles.js';
 import '../vaadin-app-layout.js';
 import '../vaadin-drawer-toggle.js';
 import './app-layout.common.js';
diff --git a/packages/app-layout/test/app-layout.common.js b/packages/app-layout/test/app-layout.common.js
index 0e34278a430..230b2a6330f 100644
--- a/packages/app-layout/test/app-layout.common.js
+++ b/packages/app-layout/test/app-layout.common.js
@@ -10,7 +10,6 @@ import {
   oneEvent,
 } from '@vaadin/testing-helpers';
 import sinon from 'sinon';
-import './not-animated-styles.js';
 
 describe('vaadin-app-layout', () => {
   let layout;