diff --git a/backend/src/Controller/UserController.php b/backend/src/Controller/UserController.php
index 4bee261..f8f2f0f 100644
--- a/backend/src/Controller/UserController.php
+++ b/backend/src/Controller/UserController.php
@@ -96,12 +96,12 @@ class UserController extends Controller
 
         $newUser = new User();
 
-        if (!isset($projectData['username'])) {
+        if (!isset($projectData['username']) || empty($projectData['username'])) {
             return new ErrorResponse(0, "You must provide a username");
         }
         $newUser->setUsername($projectData['username']);
 
-        if (!isset($projectData['password'])) {
+        if (!isset($projectData['password']) || empty($projectData['password'])) {
             return new ErrorResponse(1, "You must provide a password");
         }
         $newUser->setPassword($passwordEncoder->encodePassword(