diff --git a/telegraf/meta/prometheus.yml b/telegraf/meta/prometheus.yml
index 4e77e67..46d7fe3 100644
--- a/telegraf/meta/prometheus.yml
+++ b/telegraf/meta/prometheus.yml
@@ -74,10 +74,10 @@
         count(instance_id:instance_arping_success:avg10m:for10m == 0)
     total:openstack_nova_instance_failed:
       query: >-
-        count(instance_id:instance_arping_success:avg10m:for10m == 0 or on(id) openstack_nova_instance_status == 2)
+        count(instance_id:instance_arping_success:avg10m:for10m == 0 or on(id) openstack_nova_instance_status == 2) or vector(0)
     total:openstack_nova_instance_all:
       query: >-
-        count(instance_id:instance_arping_success:avg10m:for10m or on(id) openstack_nova_instance_status)
+        count(instance_id:instance_arping_success:avg10m:for10m or on(id) openstack_nova_instance_status) or vector(0)
   {%- endif %}
 {%- endif %}
 {%- if pillar.opencontrail is defined %}
@@ -97,10 +97,10 @@
         count(instance_id:instance_ping_success:avg10m:for10m == 0)
     total:openstack_nova_instance_failed:
       query: >-
-        count(instance_id:instance_ping_success:avg10m:for10m == 0 or on(id) openstack_nova_instance_status == 2)
+        count(instance_id:instance_ping_success:avg10m:for10m == 0 or on(id) openstack_nova_instance_status == 2) or vector(0)
     total:openstack_nova_instance_all:
       query: >-
-        count(instance_id:instance_ping_success:avg10m:for10m or on(id) openstack_nova_instance_status)
+        count(instance_id:instance_ping_success:avg10m:for10m or on(id) openstack_nova_instance_status) or vector(0)
   {%- endif %}
 {%- endif %}
 {%- if address is defined %}