diff --git a/clusters/cl01tl/helm/talos/values.yaml b/clusters/cl01tl/helm/talos/values.yaml
index e0acb4b21..5cb045341 100644
--- a/clusters/cl01tl/helm/talos/values.yaml
+++ b/clusters/cl01tl/helm/talos/values.yaml
@@ -243,7 +243,7 @@ etcd-backup:
       name: talos-prune-script
       defaultMode: 0755
       advancedMounts:
-        snapshot:
+        main:
           s3-prune-local:
             - path: /scripts/prune.sh
               subPath: backup.sh