1 files changed, 1 insertions, 1 deletions
diff --git a/index.js b/index.js
index 509df68..7f6c6c5 100644
--- a/index.js
+++ b/index.js
@@ -7,7 +7,7 @@ highlighter.requireGrammarsSync({
 });
 
 const server = http.createServer((req, res) => {
-    let filename = req.headers['filename'];
+    const filename = req.headers['filename'];
     let buffer = '';
     res.setHeader('Content-type','text/plain');
     res.statusCode = 200;