diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index f43ec07..afc9d28 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -41,4 +41,13 @@ model User {
   encryptedPrivateKey String?
   ActionToken         ActionToken[]
   AuthToken           AuthToken[]
+  UserPreference UserPreference?
 }
+
+model UserPreference {
+  id       String @id @default(uuid())
+  userId   String @unique
+  language String @default("fr")
+  theme    String @default("light")
+  User     User   @relation(fields: [userId], references: [id], onDelete: Cascade)
+}
\ No newline at end of file
diff --git a/src/services/auth.service.ts b/src/services/auth.service.ts
index 17777c9..6f0fb62 100644
--- a/src/services/auth.service.ts
+++ b/src/services/auth.service.ts
@@ -22,7 +22,7 @@ export async function registerUser(
   // 2. Hash du mot de passe
   const passwordHash = await argon2.hash(input.password)
 
-  // 3. Création de l'user
+  // 3. Création du user
   const displayName = input.email.split('@')[0]
   const user = await prisma.user.create({
     data: {