diff --git a/app/assets/javascripts/discourse/components/topic-footer-buttons.js.es6 b/app/assets/javascripts/discourse/components/topic-footer-buttons.js.es6
index a92f22bfc88..00872269000 100644
--- a/app/assets/javascripts/discourse/components/topic-footer-buttons.js.es6
+++ b/app/assets/javascripts/discourse/components/topic-footer-buttons.js.es6
@@ -53,7 +53,7 @@ export default Ember.Component.extend({
   ),
 
   @computed("topic.message_archived")
-  archiveIcon: archived => (archived ? "" : "folder"),
+  archiveIcon: archived => (archived ? "envelope" : "folder"),
 
   @computed("topic.message_archived")
   archiveTitle: archived =>