diff --git a/lib/winston/create-logger.js b/lib/winston/create-logger.js
index e868aeaad..97d99904c 100644
--- a/lib/winston/create-logger.js
+++ b/lib/winston/create-logger.js
@@ -75,7 +75,7 @@ module.exports = function (opts = {}) {
       // Optimize the hot-path which is the single object.
       if (args.length === 1) {
         const [msg] = args;
-        const info = msg && msg.message && msg || { message: msg };
+        const info = msg && msg.message && JSON.parse(JSON.stringify(msg)) || { message: msg };
         info.level = info[LEVEL] = level;
         self._addDefaultMeta(info);
         self.write(info);