diff --git a/values/attic/manifests/cm.yaml b/values/attic/manifests/cm.yaml
index c367ea87..4a90b99c 100644
--- a/values/attic/manifests/cm.yaml
+++ b/values/attic/manifests/cm.yaml
@@ -28,7 +28,7 @@ data:
     #
     # The API endpoint _must_ end with a slash (e.g., `https://domain.tld/attic/`
     # not `https://domain.tld/attic`).
-    api-endpoint = "https://attic.srv.oceanbox.io"
+    api-endpoint = "https://attic.srv.oceanbox.io/"
 
     # Whether to soft-delete caches
     #