diff --git a/src/routes/api/tenants/[id]/appointments/[appointmentId]/cancel/+server.ts b/src/routes/api/tenants/[id]/appointments/[appointmentId]/cancel/+server.ts
index b262e6e..0a00fb0 100644
--- a/src/routes/api/tenants/[id]/appointments/[appointmentId]/cancel/+server.ts
+++ b/src/routes/api/tenants/[id]/appointments/[appointmentId]/cancel/+server.ts
@@ -116,7 +116,7 @@ export const PUT: RequestHandler = async ({ params, locals }) => {
 
     // Check if user is authenticated
     if (!tenantId || !appointmentId) {
-      throw new ValidationError("Tenant ID and appointment ID are required", 400);
+      throw new ValidationError("Tenant ID and appointment ID are required");
     }
 
     checkPermission(locals, tenantId);