diff --git a/web/src/message_lists.ts b/web/src/message_lists.ts
index 1da61bf42e..f80dbd4ed2 100644
--- a/web/src/message_lists.ts
+++ b/web/src/message_lists.ts
@@ -21,7 +21,6 @@ export type SelectIdOpts = {
 
 export type MessageList = {
     id: number;
-    preserve_rendered_state: boolean;
     view: MessageListView;
     is_combined_feed_view: boolean;
     selected_id: () => number;
diff --git a/web/src/user_topics_ui.ts b/web/src/user_topics_ui.ts
index 61aebe75d2..7b7cf7990e 100644
--- a/web/src/user_topics_ui.ts
+++ b/web/src/user_topics_ui.ts
@@ -76,7 +76,7 @@ export function handle_topic_updates(user_topic_event: ServerUserTopic): void {
     setTimeout(() => {
         // Defer updates for any background-rendered messages lists until the visible one has been updated.
         for (const list of message_lists.all_rendered_message_lists()) {
-            if (list.preserve_rendered_state && message_lists.current !== list) {
+            if (message_lists.current !== list) {
                 list.update_muting_and_rerender();
             }
         }