diff --git a/src/index.ts b/src/index.ts
index 5264707..0ce30de 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -79,7 +79,8 @@ class ChartwerkPod<T extends Serie, O extends Options> {
     _series: T[] = [],
     _options: O
   ) {
-    // TODO: test if it's necessary
+    // need to call explicitly because option lazyStyleTag
+    // in webpack style-loader
     styles.use();
 
     this.options = new CoreOptions(_options);