diff --git a/tempest/values.yaml b/tempest/values.yaml
index eb7ca81ac2..e955343436 100644
--- a/tempest/values.yaml
+++ b/tempest/values.yaml
@@ -210,7 +210,7 @@ conf:
       connect_method: floating
     volume:
       disk_formats: raw
-      backend_name: rbd1
+      backend_names: rbd1
       storage_protocol: rbd
       catalog_type: volumev3
   cleanup: