diff --git a/assets/javascripts/initializers/add-event-ui-builder.js.es6 b/assets/javascripts/initializers/add-event-ui-builder.js.es6
index 39cf9a13..3a24a456 100644
--- a/assets/javascripts/initializers/add-event-ui-builder.js.es6
+++ b/assets/javascripts/initializers/add-event-ui-builder.js.es6
@@ -6,7 +6,7 @@ function initializeEventUIBuilder(api) {
   api.attachWidgetAction("post", "showEventUIBuilder", function({
     postId,
     topicId
-  } = params) {
+  }) {
     return new Promise(resolve => {
       if (postId) {
         this.store