diff --git a/playbooks/templates/storage_cassandra.yml b/playbooks/templates/storage_cassandra.yml
--- a/playbooks/templates/storage_cassandra.yml
+++ b/playbooks/templates/storage_cassandra.yml
@@ -1,11 +1,9 @@
 storage:
-  cls: validate
-  storage:
-    cls: cassandra
-    args:
-      hosts: {% if seed_addresses is defined %}{{seed_addresses}}{% else %}[{{listen_address}}]{% endif %}
+  cls: cassandra
+  args:
+    hosts: {% if seed_addresses is defined %}{{seed_addresses}}{% else %}[{{listen_address}}]{% endif %}
 
-      keyspace: swh_test
-      objstorage:
-        cls: memory
-        args: {}
+    keyspace: swh_test
+    objstorage:
+      cls: memory
+      args: {}