diff --git a/website/src/css/custom.css b/website/src/css/custom.css
index 3a892c83831d..a19f239fcab7 100644
--- a/website/src/css/custom.css
+++ b/website/src/css/custom.css
@@ -174,7 +174,7 @@ div[class^='announcementBar_'] {
 
 /* Used to test CSS insertion order */
 .test-marker-site-custom-css-unique-rule {
-  content: "site-custom-css";
+  content: "site-custom-css-unique-rule";
 }
 .test-marker-site-custom-css-shared-rule {
   max-width: 100%;