diff --git a/lib/legacy/class.js b/lib/legacy/class.js
index e1717f6d8a..a4c4d576da 100644
--- a/lib/legacy/class.js
+++ b/lib/legacy/class.js
@@ -9,7 +9,6 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
 */
 
 import { LegacyElementMixin } from './legacy-element-mixin.js';
-import { DomModule } from '../elements/dom-module.js';
 
 const metaProps = {
   attached: true,