diff --git a/ed/csspatches/css-gcpm.json.patch b/ed/csspatches/css-gcpm.json.patch
index c26deb921beb..1ec10c7ebf3f 100644
--- a/ed/csspatches/css-gcpm.json.patch
+++ b/ed/csspatches/css-gcpm.json.patch
@@ -3,8 +3,8 @@ From: Francois Daoust <fd@tidoust.net>
 Date: Tue, 30 Jan 2024 09:33:39 +0100
 Subject: [PATCH] Rollback definition of :nth() to please parser
 
-Rolling back pending support in CSSTree for `<an+b>` or some other resolution:
-https://github.com/csstree/csstree/issues/263
+Rolling back pending syntax update for `<an+b>` in CSS Syntax spec:
+https://github.com/w3c/csswg-drafts/pull/9480
 
 Rollback is partial, keeping the `:nth` prefixing.
 ---