diff --git a/climate/plugins/oshosts/host_plugin.py b/climate/plugins/oshosts/host_plugin.py
index e230730..2846e72 100644
--- a/climate/plugins/oshosts/host_plugin.py
+++ b/climate/plugins/oshosts/host_plugin.py
@@ -315,10 +315,11 @@ class PhysicalHostPlugin(base.BasePlugin, nova.NovaClientWrapper):
             # TODO(sbauza):
             #  - Check if no leases having this host scheduled
             inventory = nova_inventory.NovaInventory()
-            servers = inventory.get_servers_per_host(host_id)
+            servers = inventory.get_servers_per_host(
+                host['hypervisor_hostname'])
             if servers:
-                raise manager_ex.HostHavingServers(host=host_id,
-                                                   servers=servers)
+                raise manager_ex.HostHavingServers(
+                    host=host['hypervisor_hostname'], servers=servers)
             try:
                 pool = rp.ReservationPool()
                 pool.remove_computehost(self.freepool_name,