diff --git a/js/src/forum/components/PostStreamScrubber.js b/js/src/forum/components/PostStreamScrubber.js
index deb4cf2cf..93abaaecd 100644
--- a/js/src/forum/components/PostStreamScrubber.js
+++ b/js/src/forum/components/PostStreamScrubber.js
@@ -137,7 +137,7 @@ export default class PostStreamScrubber extends Component {
 
     setTimeout(() => this.scrollListener.start());
 
-    this.updateScrubberValues({ animate: true, forceHeightChange: true });
+    this.stream.loadPromise.then(() => this.updateScrubberValues({ animate: true, forceHeightChange: true }));
   }
 
   onremove() {