diff --git a/webapp/components/post_view/post_body_additional_content.jsx b/webapp/components/post_view/post_body_additional_content.jsx
index 1d900018a3..bf01374fea 100644
--- a/webapp/components/post_view/post_body_additional_content.jsx
+++ b/webapp/components/post_view/post_body_additional_content.jsx
@@ -78,6 +78,7 @@ export default class PostBodyAdditionalContent extends React.PureComponent {
         return (
             <PostAttachmentList
                 attachments={attachments}
+                key={this.props.post.id}
             />
         );
     }