diff --git a/4chan_x.user.js b/4chan_x.user.js
index 341a8cd57..aa27efb2a 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -3203,7 +3203,7 @@
             $.addClass(el, 'qphl');
           }
         }
-        replyID = $.x('ancestor::div[contains(@class,"postContainer")]', this).id.slice(2);
+        replyID = $.x('ancestor::div[contains(@class,"postContainer")]', this).id.match(/\d+$/)[0];
         _ref = $$('.quotelink, .backlink', qp);
         for (_i = 0, _len = _ref.length; _i < _len; _i++) {
           quote = _ref[_i];
diff --git a/script.coffee b/script.coffee
index 1ed25ed4e..7055b03d6 100644
--- a/script.coffee
+++ b/script.coffee
@@ -2431,7 +2431,7 @@ QuotePreview =
           $.addClass el.parentNode, 'qphl'
         else
           $.addClass el, 'qphl'
-      replyID = $.x('ancestor::div[contains(@class,"postContainer")]', @).id[2..]
+      replyID = $.x('ancestor::div[contains(@class,"postContainer")]', @).id.match(/\d+$/)[0]
       for quote in $$ '.quotelink, .backlink', qp
         if quote.hash[2..] is replyID
           $.addClass quote, 'forwardlink'