diff --git a/server/routes/users.js b/server/routes/users.js
index d7e17e6..276a021 100755
--- a/server/routes/users.js
+++ b/server/routes/users.js
@@ -101,7 +101,7 @@ router.post("/create", function(req, res) {
     let re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
     if (!re.exec(mail)) {
       console.log("Invalid email address: " + mail);
-      return res.status(400).send("Invalid email address.");
+      throw "Invalid email address.";
     }
   }).then(function() {
     return new Promise(function(resolve, reject) {