diff --git a/4chan_x.user.js b/4chan_x.user.js
index a0975a19a..539b321a0 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -972,7 +972,7 @@
           }
           break;
         case conf.unreadCountTo0:
-          unread.replies.length = 0;
+          unread.replies = [];
           unread.updateTitle();
           Favicon.update();
           break;
diff --git a/script.coffee b/script.coffee
index ab4dfa06b..0999439f6 100644
--- a/script.coffee
+++ b/script.coffee
@@ -709,7 +709,7 @@ keybinds =
         else
           $('.postarea form').submit()
       when conf.unreadCountTo0
-        unread.replies.length = 0
+        unread.replies = []
         unread.updateTitle()
         Favicon.update()
       else