diff --git a/gns3server/schemas/template.py b/gns3server/schemas/template.py
index 6cfdb30d..7a6eb8e9 100644
--- a/gns3server/schemas/template.py
+++ b/gns3server/schemas/template.py
@@ -27,7 +27,7 @@ BASE_TEMPLATE_PROPERTIES = {
     },
     "template_type": {
         "description": "Type of node",
-        "enum": ["cloud", "ethernet_hub", "ethernet_switch", "docker", "dynamips", "vpcs", "traceng",
+        "enum": ["cloud", "nat", "ethernet_hub", "ethernet_switch", "docker", "dynamips", "vpcs", "traceng",
                  "virtualbox", "vmware", "iou", "qemu"]
     },
     "name": {