diff --git a/roles/ceph-mon/tasks/openstack_config.yml b/roles/ceph-mon/tasks/openstack_config.yml
index 02b21272e..90894dc4c 100644
--- a/roles/ceph-mon/tasks/openstack_config.yml
+++ b/roles/ceph-mon/tasks/openstack_config.yml
@@ -1,7 +1,7 @@
 ---
 - name: create openstack pool
   command: ceph --cluster {{ cluster }} osd pool create {{ item.name }} {{ item.pg_num }}
-  with_items: "{{ openstack_pools }}"
+  with_items: "{{ openstack_pools | unique }}"
   changed_when: false
   failed_when: false