diff --git a/4chan_x.js b/4chan_x.js
index 4ee5be823..4a25e3294 100644
--- a/4chan_x.js
+++ b/4chan_x.js
@@ -607,6 +607,7 @@
         if (!(dd = $('td.doubledash', root))) {
           return;
         }
+        $.addClass(dd, 'replyhider');
         a = $.el('a', {
           textContent: '[ - ]'
         });
diff --git a/script.coffee b/script.coffee
index dfce779d0..5e9c3ba69 100644
--- a/script.coffee
+++ b/script.coffee
@@ -430,6 +430,7 @@ replyHiding =
 
     node: (root) ->
       return unless dd = $ 'td.doubledash', root
+      $.addClass dd, 'replyhider'
       a = $.el 'a',
         textContent: '[ - ]'
       $.bind a, 'click', replyHiding.cb.hide