diff --git a/web/src/stream_list.js b/web/src/stream_list.js
index 88b9c6f7fb..a785aafccc 100644
--- a/web/src/stream_list.js
+++ b/web/src/stream_list.js
@@ -594,6 +594,12 @@ export function update_dom_with_unread_counts(counts) {
 }
 
 export function update_dom_unread_counts_visibility() {
+    const $streams_header = $("#streams_header");
+    if (settings_data.should_mask_unread_count()) {
+        $streams_header.addClass("hide_unread_counts");
+    } else {
+        $streams_header.removeClass("hide_unread_counts");
+    }
     for (const stream of stream_sidebar.rows.values()) {
         const $subscription_block = stream.get_li().find(".subscription_block");