diff --git a/src/main/resources/static/styles.js b/src/main/resources/static/styles.js
index e93e711..75421fa 100644
--- a/src/main/resources/static/styles.js
+++ b/src/main/resources/static/styles.js
@@ -19,3 +19,5 @@
      </style>
   </template>`;
 styleElement.register('coverage-column-styles');
+
+export {};