diff --git a/plugins/modules/azure_rm_aks.py b/plugins/modules/azure_rm_aks.py
index 0fb5095fe..146afe475 100644
--- a/plugins/modules/azure_rm_aks.py
+++ b/plugins/modules/azure_rm_aks.py
@@ -247,6 +247,8 @@
                 choices:
                     - loadBalancer
                     - userDefinedRouting
+                    - managedNATGateway
+                    - userAssignedNATGateway
     api_server_access_profile:
         description:
             - Profile of API Access configuration.
@@ -810,7 +812,7 @@ def create_addon_profiles_spec():
     dns_service_ip=dict(type='str'),
     docker_bridge_cidr=dict(type='str'),
     load_balancer_sku=dict(type='str', choices=['standard', 'basic']),
-    outbound_type=dict(type='str', default='loadBalancer', choices=['userDefinedRouting', 'loadBalancer'])
+    outbound_type=dict(type='str', default='loadBalancer', choices=['userDefinedRouting', 'loadBalancer', 'userAssignedNATGateway', 'managedNATGateway'])
 )