diff --git a/web/styles/left_sidebar.css b/web/styles/left_sidebar.css
index 2ddd22d8a8..6399426a5b 100644
--- a/web/styles/left_sidebar.css
+++ b/web/styles/left_sidebar.css
@@ -797,7 +797,8 @@ ul.filters {
     }
 
     .has-only-muted-unreads {
-        .unread_count {
+        .unread_count,
+        .masked_unread_count {
             opacity: var(--opacity-left-sidebar-muted);
         }