diff --git a/apps/comments-ui/src/App.js b/apps/comments-ui/src/App.js
index fbe4de8233..1288fe37c2 100644
--- a/apps/comments-ui/src/App.js
+++ b/apps/comments-ui/src/App.js
@@ -32,6 +32,7 @@ export default class App extends React.Component {
             action: 'init:running',
             initStatus: 'running',
             member: null,
+            comments: null,
             popupNotification: null,
             customSiteUrl: props.customSiteUrl
         };
diff --git a/apps/comments-ui/src/index.js b/apps/comments-ui/src/index.js
index dc35c44b5a..277fb910b0 100644
--- a/apps/comments-ui/src/index.js
+++ b/apps/comments-ui/src/index.js
@@ -28,7 +28,7 @@ function getSiteData() {
      */
     const scriptTag = document.querySelector('script[data-ghost-comments]');
     if (scriptTag) {
-        const siteUrl = scriptTag.dataset.ghost;
+        const siteUrl = scriptTag.dataset.ghostComments;
         const apiKey = scriptTag.dataset.key;
         const apiUrl = scriptTag.dataset.api;
         const sentryDsn = scriptTag.dataset.sentryDsn;