diff --git a/clusters/cl01tl/helm/homepage/values.yaml b/clusters/cl01tl/helm/homepage/values.yaml
index 154abc482..86a3bb898 100644
--- a/clusters/cl01tl/helm/homepage/values.yaml
+++ b/clusters/cl01tl/helm/homepage/values.yaml
@@ -684,7 +684,7 @@ homepage:
                   icon: sh-shelfmark.webp
                   description: Books
                   href: https://shelfmark.alexlebens.net
-                  siteMonitor: http://shelfmark.ephemera:80
+                  siteMonitor: http://shelfmark.shelfmark:80
                   statusStyle: dot
               - Ephemera:
                   icon: sh-ephemera.webp