diff --git a/4chan_x.user.js b/4chan_x.user.js
index cb9926cc9..47a47776f 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -576,6 +576,7 @@
               $.before(firstThread.parentNode, [thisThread, thisThread.nextElementSibling]);
             }
           }
+          return false;
         } else if (isOP) {
           if (!g.REPLY) threadHiding.hideHide(root.parentNode);
         } else {
diff --git a/script.coffee b/script.coffee
index d9b59f856..ef0b5c4c6 100644
--- a/script.coffee
+++ b/script.coffee
@@ -491,6 +491,8 @@ filter =
           # ...before the first non highlighted thread.
           if firstThread = $ 'div[class=op]'
             $.before firstThread.parentNode, [thisThread, thisThread.nextElementSibling]
+        # Continue the filter lookup to add more classes or hide it.
+        return false
       else if isOP
         unless g.REPLY
           threadHiding.hideHide root.parentNode