diff --git a/aws-node-express-dynamodb-api/index.js b/aws-node-express-dynamodb-api/index.js
index 369c67e1d..d50eaa3fa 100644
--- a/aws-node-express-dynamodb-api/index.js
+++ b/aws-node-express-dynamodb-api/index.js
@@ -43,9 +43,9 @@ app.get("/users/:userId", async function (req, res) {
 app.post("/users", async function (req, res) {
   const { userId, name } = req.body;
   if (typeof userId !== "string") {
-    res.status(400).json({ error: '"userId" must be a string' });
+    return res.status(400).json({ error: '"userId" must be a string' });
   } else if (typeof name !== "string") {
-    res.status(400).json({ error: '"name" must be a string' });
+    return res.status(400).json({ error: '"name" must be a string' });
   }
 
   const params = {