diff --git a/src/main.ts b/src/main.ts
index 3bc4906..bc5d175 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -17,7 +17,7 @@ http
     const isPost = req.method === "POST";
 
     req.on("data", async (chunk) => {
-      const sender = req.headers["user-agent"];
+      const sender = emp(req.headers["user-agent"]);
       let data: Review[] = checkFile("data.json", "utf8");
       let temp: any;
 
@@ -32,7 +32,7 @@ http
         .validate(temp)
         .then((valid) => {
           req.on("end", () => {
-            logger.log(`${emp(sender)} sent: ${valid}`);
+            logger.log(`${sender} sent: ${valid}`);
 
             data.push(valid);
             fs.writeFileSync(
@@ -55,9 +55,9 @@ http
     });
 
     req.on("end", () => {
-      const sender = req.headers["user-agent"];
+      const sender = emp(req.headers["user-agent"]);
       if (!isPost) {
-        logger.log(`${emp(sender)} sent no data.`)
+        logger.log(`${sender} sent no data.`)
 
         res.writeHead(400, contentType);
         res.write(response.error("Invalid content-type"));