diff --git a/roles/nagios_client/tasks/main.yml b/roles/nagios_client/tasks/main.yml
index a756ca4863..6899966f91 100644
--- a/roles/nagios_client/tasks/main.yml
+++ b/roles/nagios_client/tasks/main.yml
@@ -58,7 +58,7 @@
   - check_lock.cfg
   - check_fedmsg_hub_proc.cfg
   - check_openvpn_link.cfg
-    when: datacenter not 'phx2'
+    when: datacenter != 'phx2'
   - check_unbound_proc.cfg
     when: inventory_hostname.startswith('unbound')
   notify: