diff --git a/tasks/persistent_cloud.yml b/tasks/persistent_cloud.yml
index ab60576089..b4ebc55567 100644
--- a/tasks/persistent_cloud.yml
+++ b/tasks/persistent_cloud.yml
@@ -64,7 +64,7 @@
 - local_action: shell nova --os-auth-url="{{os_auth_url}}" --os-username="admin" --os-password="{{ADMIN_PASS}}" --os-tenant-name={{inventory_tenant}} volume-attach "{{inventory_instance_name}}" "{{item.volume_id}}" "{{item.device}}"
   with_items: "{{volumes}}"
   ignore_errors: True
-  when: volume_available.rc == 0
+  when: volumes is defined and volume_available is defined and volume_available is true
 
 - name: wait for he host to be hot
   local_action: wait_for host={{ public_ip }} port=22 delay=1 timeout=600