diff --git a/controllers/homeController.js b/controllers/homeController.js
index 6f9ccfd..f9f0ba6 100644
--- a/controllers/homeController.js
+++ b/controllers/homeController.js
@@ -287,7 +287,7 @@ exports.index = async (req, res) => {
     data.floatingContact = normalizeFloatingContactData(data.floatingContact);
 
     const frontendUrl = process.env.FRONTEND_URL || "http://localhost:3000";
-    const backendUrl = `${req.protocol}://${req.get("host")}`;
+    const backendUrl = process.env.BACKEND_URL || `${req.protocol}://${req.get("host")}`;
 
     // Lấy tất cả blog để chọn trong CMS
     const allBlogs = await Blog.find({ status: "published" })