diff --git a/src/main/kotlin/com/ray650128/extension/ResponseExtension.kt b/src/main/kotlin/com/ray650128/extension/ResponseExtension.kt
index 9d6468d..f770801 100644
--- a/src/main/kotlin/com/ray650128/extension/ResponseExtension.kt
+++ b/src/main/kotlin/com/ray650128/extension/ResponseExtension.kt
@@ -20,10 +20,10 @@ suspend fun <T : Any> ApplicationCall.sendSuccess(data: T?) {
     )
 }
 
-suspend fun ApplicationCall.sendUnauthorized(errorResponse: ErrorResponse) {
+suspend fun ApplicationCall.sendUnauthorized() {
     this.respond(
         status = HttpStatusCode.Unauthorized,
-        message = errorResponse
+        message = ErrorResponse.UNAUTHORIZED_RESPONSE
     )
 }
 
@@ -34,9 +34,9 @@ suspend fun ApplicationCall.sendBadRequest(errorResponse: ErrorResponse) {
     )
 }
 
-suspend fun ApplicationCall.sendNotFound(errorResponse: ErrorResponse) {
+suspend fun ApplicationCall.sendNotFound() {
     this.respond(
         status = HttpStatusCode.NotFound,
-        message = errorResponse
+        message = ErrorResponse.NOT_FOUND_RESPONSE
     )
 }
diff --git a/src/main/kotlin/com/ray650128/plugins/UserRouting.kt b/src/main/kotlin/com/ray650128/plugins/UserRouting.kt
index 5a7fb77..ceb2299 100644
--- a/src/main/kotlin/com/ray650128/plugins/UserRouting.kt
+++ b/src/main/kotlin/com/ray650128/plugins/UserRouting.kt
@@ -50,18 +50,18 @@ fun Application.configureUserRouting() {
                         }
                         call.sendSuccess(LoginResult(request.account, token!!))
                     } else {
-                        call.sendUnauthorized(ErrorResponse("Account or Password wrong."))
+                        call.sendBadRequest(ErrorResponse("Account or Password wrong."))
                     }
                 }
 
                 authenticate {
                     post("/logout") {
                         val account = call.authentication.principal<UserDto>()?.account ?: run {
-                            call.sendUnauthorized(ErrorResponse("Unauthorized"))
+                            call.sendUnauthorized()
                             return@post
                         }
                         val user = service.findByAccount(account) ?: run {
-                            call.sendUnauthorized(ErrorResponse("Unauthorized"))
+                            call.sendUnauthorized()
                             return@post
                         }
                         user.apply {
@@ -83,7 +83,7 @@ fun Application.configureUserRouting() {
                 val id = call.parameters["id"].toString()
                 service.findById(id)
                     ?.let { foundPerson -> call.respond(foundPerson.toDto()) }
-                    ?: call.sendNotFound(ErrorResponse.NOT_FOUND_RESPONSE)
+                    ?: call.sendNotFound()
             }
 
             get("/search") {