diff --git a/data/static/register.js b/data/static/register.js
index 91dc92b..08a3a97 100644
--- a/data/static/register.js
+++ b/data/static/register.js
@@ -14,7 +14,7 @@ async function register(email, username, password) {
     })
     const json = await response.json()
     if (json.code != 200) {
-        return iziToast.error({ title: json.error, message: json.message })
+        return iziToast.error({ title: json.error || "Erreur", message: json.message || "Erreur inconnue" })
     } else {
         console.log(json)
         return iziToast.success({ title: "Succès", message: json.message })