diff --git a/roles/nagios_server/templates/nagios/hostgroups/all.cfg.j2 b/roles/nagios_server/templates/nagios/hostgroups/all.cfg.j2
index 73f0323e5e..c0f625a8b8 100644
--- a/roles/nagios_server/templates/nagios/hostgroups/all.cfg.j2
+++ b/roles/nagios_server/templates/nagios/hostgroups/all.cfg.j2
@@ -9,7 +9,7 @@
 define hostgroup{
        hostgroup_name {{ key }}
        alias          {{ key }}
-       members        {% for host in groups[key] %}{% if hostvars[host].env == 'staging' %}{{host}}, {% endif %}{% endfor %} 
+       members        {% for host in groups[key] %}{% if (hostvars[host].env is defined) and (hostvars[host].env == 'staging') %} {{host}}, {% endif %} {% endfor %} 
 
 }