diff --git a/src/components/views/elements/EventTilePreview.tsx b/src/components/views/elements/EventTilePreview.tsx
index bea060fcca..a7ebf40c3a 100644
--- a/src/components/views/elements/EventTilePreview.tsx
+++ b/src/components/views/elements/EventTilePreview.tsx
@@ -122,7 +122,7 @@ export default class EventTilePreview extends React.Component<IProps, IState> {
         const className = classnames(this.props.className, {
             "mx_IRCLayout": this.props.layout == Layout.IRC,
             "mx_GroupLayout": this.props.layout == Layout.Group,
-            "mx_EventTilePreview_loader": !this.props.userId
+            "mx_EventTilePreview_loader": !this.props.userId,
         });
 
         if (!this.props.userId) return <div className={className}><Spinner /></div>;