diff --git a/backend_rust/src/api/auth.rs b/backend_rust/src/api/auth.rs
index 535d1bc..461b0c3 100644
--- a/backend_rust/src/api/auth.rs
+++ b/backend_rust/src/api/auth.rs
@@ -9,6 +9,7 @@ use crate::error::ApiError;
 use crate::middleware::auth::create_token;
 
 #[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
 pub struct RegisterRequest {
     pub username: String,
     pub password: String,