diff --git a/controllers/user.js b/controllers/user.js
index 9f3a852..3c22147 100644
--- a/controllers/user.js
+++ b/controllers/user.js
@@ -42,7 +42,6 @@ exports.post = [
     const user = new User({
       username: username,
       password: await bcrypt.hash(password, 10),
-      _id: dbUser._id,
     });
 
     await User.findByIdAndUpdate(dbUser._id, user, {});