diff --git a/covas_mobile/lib/l10n/app_en.arb b/covas_mobile/lib/l10n/app_en.arb
index b78e654..2f26705 100644
--- a/covas_mobile/lib/l10n/app_en.arb
+++ b/covas_mobile/lib/l10n/app_en.arb
@@ -26,5 +26,6 @@
 "create": "Creation",
 "user_create": "Your user created",
 "request_error": "Poorly constructed query",
-"incorrect_password": "Incorrect password"
+"incorrect_password": "Incorrect password",
+"unknown_user": "Utilisateur inconnu"
 }
\ No newline at end of file
diff --git a/covas_mobile/lib/l10n/app_fr.arb b/covas_mobile/lib/l10n/app_fr.arb
index cc89034..8926cd5 100644
--- a/covas_mobile/lib/l10n/app_fr.arb
+++ b/covas_mobile/lib/l10n/app_fr.arb
@@ -26,5 +26,6 @@
 "create": "Création",
 "user_create": "Votre utilisateur a été créé",
 "request_error": "Requête mal construite",
-"incorrect_password": "Mot de passe incorrect"
+"incorrect_password": "Mot de passe incorrect",
+"unknown_user": "Utilisateur inconnu"
 }
\ No newline at end of file
diff --git a/covas_mobile/lib/pages/AddProfile.dart b/covas_mobile/lib/pages/AddProfile.dart
index 36e321e..ce0fc25 100644
--- a/covas_mobile/lib/pages/AddProfile.dart
+++ b/covas_mobile/lib/pages/AddProfile.dart
@@ -139,7 +139,7 @@ class _AddProfileState extends State<AddProfile> with ShowAlertDialog {
           "Poorly constructed query",
       406: AppLocalizations.of(context)?.incorrect_password ??
           "Incorrect password",
-      404: "Utilisateur inconnu",
+      404: AppLocalizations.of(context)?.unknown_user ?? "Utilisateur inconnu",
       403: "Utilisateur désactivé",
       410: "Token invalide",
       500: "Problème interne du serveur",