diff --git a/plugins/modules/api_modify.py b/plugins/modules/api_modify.py
index 24732a1..860e718 100644
--- a/plugins/modules/api_modify.py
+++ b/plugins/modules/api_modify.py
@@ -79,6 +79,7 @@ options:
         - interface gre
         - interface gre6
         - interface l2tp-server server
+        - interface l2tp-client
         - interface list
         - interface list member
         - interface ovpn-client