diff --git a/src/hostname/hostnamed.c b/src/hostname/hostnamed.c
index a8ebf97cd26..a0bf1bfdc89 100644
--- a/src/hostname/hostnamed.c
+++ b/src/hostname/hostnamed.c
@@ -1636,9 +1636,6 @@ static int vl_method_describe(Varlink *link, sd_json_variant *parameters, Varlin
          * the product ID which we'll check explicitly. */
         privileged = r > 0;
 
-        if (sd_json_variant_elements(parameters) > 0)
-                return varlink_error_invalid_parameter(link, parameters);
-
         _cleanup_(sd_json_variant_unrefp) sd_json_variant *v = NULL;
         r = build_describe_response(c, privileged, &v);
         if (r < 0)
diff --git a/src/shared/varlink-io.systemd.Hostname.c b/src/shared/varlink-io.systemd.Hostname.c
index a6c6aec2a8c..247bca6da31 100644
--- a/src/shared/varlink-io.systemd.Hostname.c
+++ b/src/shared/varlink-io.systemd.Hostname.c
@@ -4,6 +4,7 @@
 
 static VARLINK_DEFINE_METHOD(
                 Describe,
+                VARLINK_DEFINE_INPUT(allowInteractiveAuthentication, VARLINK_BOOL, VARLINK_NULLABLE),
                 VARLINK_DEFINE_OUTPUT(Hostname, VARLINK_STRING, 0),
                 VARLINK_DEFINE_OUTPUT(StaticHostname, VARLINK_STRING, VARLINK_NULLABLE),
                 VARLINK_DEFINE_OUTPUT(PrettyHostname, VARLINK_STRING, VARLINK_NULLABLE),