diff --git a/plugins/chat/assets/stylesheets/desktop/chat-message-thread-indicator.scss b/plugins/chat/assets/stylesheets/desktop/chat-message-thread-indicator.scss
index 7f53cb2a0cb..57a6fadc01d 100644
--- a/plugins/chat/assets/stylesheets/desktop/chat-message-thread-indicator.scss
+++ b/plugins/chat/assets/stylesheets/desktop/chat-message-thread-indicator.scss
@@ -1,4 +1,5 @@
 .chat-message-thread-indicator {
+  max-width: 600px;
   grid-template-areas:
     "avatar info replies participants"
     "avatar excerpt excerpt excerpt";