diff --git a/modules/nebula/main.tf b/modules/nebula/main.tf
index 352afec..ff3ce36 100644
--- a/modules/nebula/main.tf
+++ b/modules/nebula/main.tf
@@ -105,7 +105,8 @@ resource "opennebula_template" "vm_template" {
     content {
       network_id = nic.value.network_id
       model = "virtio"
-      mac = nic.value.mac
+      mac = ( nic.value.mac != "" ? nic.value.mac : "" )
+      ip = ( nic.value.ip != "" ? nic.value.ip : "" )
     }
   }
   permissions = var.permissions