diff --git a/doorlockd/response.h b/doorlockd/response.h
index 45d275e..13fd15c 100644
--- a/doorlockd/response.h
+++ b/doorlockd/response.h
@@ -17,6 +17,7 @@ struct Response
         InvalidIP, // IP check failure
         UnknownCommand, // Unknown action
         LDAPInit, // Ldap initialization failed
+        AccessDenied, // Access denied
     } code;
 
     std::string message;