diff --git a/code/index.js b/code/index.js
index 8c2cc17..a683124 100644
--- a/code/index.js
+++ b/code/index.js
@@ -97,14 +97,15 @@ listeners.accounting.socket.bind (config.ports.radius_accounting);
 
 // HTTP listener
 const respond = (res, content, status) => {
-    if (typeof (content) == "string") {
-        res.write (content);
+    var type = "text/plain";
+    if (typeof (content) != "string") {
+        content = JSON.stringify (content);
+        type = "application/json";
     }
-    else {
-        res.write (JSON.stringify (content));
-    }
-    res.statusCode = status;
-    res.end ();
+    res.writeHead (status, {
+        "Content-Type": type,
+        "Content-Length": content.length
+    }).end (content);
 };
 
 http.createServer (function (req, res) {