diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
index 77467f00a..a0d151d7a 100644
--- a/wpa_supplicant/config.c
+++ b/wpa_supplicant/config.c
@@ -5519,6 +5519,9 @@ static const struct global_parse_data global_fields[] = {
 	{ INT_RANGE(pasn_corrupt_mic, 0, 1), 0 },
 #endif /* CONFIG_TESTING_OPTIONS */
 #endif /* CONFIG_PASN */
+	/* NOTE: When adding new parameters here, add_interface() in
+	 * wpa_supplicant/dbus_new_introspect.c may need to be modified to
+	 * increase the size of the iface->xml buffer. */
 };
 
 #undef FUNC
diff --git a/wpa_supplicant/dbus/dbus_new_introspect.c b/wpa_supplicant/dbus/dbus_new_introspect.c
index 6c721bf55..a8c0d2839 100644
--- a/wpa_supplicant/dbus/dbus_new_introspect.c
+++ b/wpa_supplicant/dbus/dbus_new_introspect.c
@@ -38,7 +38,7 @@ static struct interfaces * add_interface(struct dl_list *list,
 	if (!iface)
 		return NULL;
 	iface->dbus_interface = os_strdup(dbus_interface);
-	iface->xml = wpabuf_alloc(15000);
+	iface->xml = wpabuf_alloc(16000);
 	if (iface->dbus_interface == NULL || iface->xml == NULL) {
 		os_free(iface->dbus_interface);
 		wpabuf_free(iface->xml);