diff --git a/app/javascript/mastodon/components/status.js b/app/javascript/mastodon/components/status.js
index d795ff000..ec9b2a255 100644
--- a/app/javascript/mastodon/components/status.js
+++ b/app/javascript/mastodon/components/status.js
@@ -175,6 +175,7 @@ class StatusUnextended extends ImmutablePureComponent {
render () {
let media = null;
+ let thumb = null;
let statusAvatar;
// Exclude intersectionObserverWrapper from `other` variable
@@ -221,8 +222,10 @@ class StatusUnextended extends ImmutablePureComponent {
} else if (status.getIn(['media_attachments', 0, 'type']) === 'video') {
media =