diff --git a/lib/src/models/user.dart b/lib/src/models/user.dart
index 5c3ce41..332affe 100644
--- a/lib/src/models/user.dart
+++ b/lib/src/models/user.dart
@@ -30,7 +30,7 @@ class User extends Model {
       "email": email,
       "username": username,
       "password": password,
-      roles: roles
+      "roles": roles
     };
   }
 }
diff --git a/lib/src/routes/controllers/auth.dart b/lib/src/routes/controllers/auth.dart
index 35972ce..236da37 100644
--- a/lib/src/routes/controllers/auth.dart
+++ b/lib/src/routes/controllers/auth.dart
@@ -2,7 +2,7 @@ library angel.routes.controllers.auth;
 
 import 'package:angel_auth/angel_auth.dart';
 import 'package:angel_framework/angel_framework.dart';
-import '../../services/user/user.dart';
+import '../../services/user.dart';
 
 @Expose("/auth")
 class AuthController extends Controller {
diff --git a/lib/src/services/services.dart b/lib/src/services/services.dart
index 966bf38..8cc3c9b 100644
--- a/lib/src/services/services.dart
+++ b/lib/src/services/services.dart
@@ -4,7 +4,7 @@ library angel.services;
 import 'package:angel_framework/angel_framework.dart';
 import 'package:mongo_dart/mongo_dart.dart';
 
-import 'user/user.dart' as User;
+import 'user.dart' as User;
 
 configureServer(Angel app) async {
   Db db = new Db(app.properties["mongo_db"]);
diff --git a/lib/src/services/user/user.dart b/lib/src/services/user.dart
similarity index 94%
rename from lib/src/services/user/user.dart
rename to lib/src/services/user.dart
index 358d361..d59199d 100644
--- a/lib/src/services/user/user.dart
+++ b/lib/src/services/user.dart
@@ -3,8 +3,8 @@ import 'package:angel_mongo/angel_mongo.dart';
 import 'package:crypto/crypto.dart' show sha256;
 import 'package:mongo_dart/mongo_dart.dart';
 import 'package:validate/validate.dart';
-import '../../models/user.dart';
-export '../../models/user.dart';
+import '../models/user.dart';
+export '../models/user.dart';
 
 configureServer(Db db) {
   return (Angel app) async {
@@ -49,6 +49,7 @@ class UserService extends Service {
 
     try {
       Validate.isKeyInMap("username", data);
+      Validate.isKeyInMap("password", data);
       Validate.isEmail(data["email"]);
       data["password"] = hashPassword(data["password"]);
     } catch (e) {