diff --git a/src/palette/color-picker-color-checkbox.js b/src/palette/color-picker-color-checkbox.js
index d6db3bf..7530127 100644
--- a/src/palette/color-picker-color-checkbox.js
+++ b/src/palette/color-picker-color-checkbox.js
@@ -1,4 +1,5 @@
 import {CheckboxElement} from '@vaadin/vaadin-checkbox/src/vaadin-checkbox';
+import '@vaadin/vaadin-checkbox';
 import 'tinycolor2';
 import ColorPickerUtils from '../utils/color-picker-utils';