diff --git a/clusters/cl01tl/services/talos/values.yaml b/clusters/cl01tl/services/talos/values.yaml
index aa5bb8484..e89e4dbd6 100644
--- a/clusters/cl01tl/services/talos/values.yaml
+++ b/clusters/cl01tl/services/talos/values.yaml
@@ -137,8 +137,8 @@ etcd-backup:
       type: secret
       name: talos-etcd-backup-secret
       advancedMounts:
-        backup:
-          s3-backup:
+        main:
+          s3-prune:
             - path: /root/.s3cfg
               readOnly: true
               mountPropagation: None