diff --git a/circle.yml b/circle.yml
new file mode 100644
index 00000000..e757db9b
--- /dev/null
+++ b/circle.yml
@@ -0,0 +1,4 @@
+machine:
+  node:
+    version: 8.0.0
+
diff --git a/server/portal_server.js b/server/portal_server.js
index 836d28b1..cb3eb346 100644
--- a/server/portal_server.js
+++ b/server/portal_server.js
@@ -89,7 +89,7 @@ app.post('/delete/:id', (req, res) => {
   const id = req.params.id;
 
   if (!validateID(id)) {
-    res.send(404);
+    res.sendStatus(404);
     return;
   }