diff --git a/backend/src/models/user.rs b/backend/src/models/user.rs
index 66cbcf6..815b5ad 100644
--- a/backend/src/models/user.rs
+++ b/backend/src/models/user.rs
@@ -4,6 +4,7 @@ use sqlx::PgPool;
 use uuid::Uuid;
 
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize, sqlx::Type)]
+#[serde(rename_all = "lowercase")]
 #[sqlx(type_name = "user_role", rename_all = "lowercase")]
 pub enum UserRole {
     Guest,