diff --git a/src/middlewares/log.ts b/src/middlewares/log.ts
index 9db083d..ded81a4 100644
--- a/src/middlewares/log.ts
+++ b/src/middlewares/log.ts
@@ -53,7 +53,7 @@ async function logMiddleware(req: Request, res: Response, next: NextFunction) {
       endpoint: req.url,
       responseCode: res.statusCode,
       responseDescription:
-        data.devMessage !== undefined
+        data?.devMessage !== undefined
           ? data.devMessage
           : { 200: "success", 201: "created_success", 204: "no_content", 304: "success" }[
               res.statusCode