diff --git a/ansible/install/roles/grafana/tasks/main.yml b/ansible/install/roles/grafana/tasks/main.yml
index cf67ba45e..5f9f18543 100644
--- a/ansible/install/roles/grafana/tasks/main.yml
+++ b/ansible/install/roles/grafana/tasks/main.yml
@@ -7,7 +7,7 @@
 - name: Check Graphite/Grafana Host IP Address
   fail:
     msg="** Edit grafana_host and graphite_host in ../install/group_vars/all.yml before running **"
-  when: ((grafana_host is none) and (graphite_host is none))
+  when: ((grafana_host is none) or (graphite_host is none))
 
 - name: Import EPEL GPG Key
   rpm_key: key=https://dl.fedoraproject.org/pub/epel/RPM-GPG-KEY-EPEL-7