diff --git a/site.yml b/site.yml
index ff4ebcfcf..edc85b3cc 100644
--- a/site.yml
+++ b/site.yml
@@ -5,7 +5,7 @@
   sudo: True
   roles:
   - ceph-mon
-  - ceph-restapi
+  - { role: ceph-restapi, when: restapi_group_name is defined }
 
 - hosts: osds
   sudo: True