diff --git a/backend/controllers/user.controller.js b/backend/controllers/user.controller.js
index e81b497..28c352f 100644
--- a/backend/controllers/user.controller.js
+++ b/backend/controllers/user.controller.js
@@ -21,10 +21,14 @@ exports.findAll = (req, res) => {
 exports.findOne = (req, res) => {
     const id = req.params.id;
 
-    User.findByPk(id)
+    User.findByPk(id, {
+        include: ['roles']
+    })
         .then(data => {
             if (data) {
-                res.send(data);
+                let dts = data.toJSON();
+                dts.roles = data.roles.map(role => "ROLE_" + role.name.toUpperCase());
+                res.send(dts);
             } else {
                 res.status(404).send({
                     message: `Cannot find user with id=${id}.`
diff --git a/backend/models/role.model.js b/backend/models/role.model.js
index bb418f3..a75f27c 100644
--- a/backend/models/role.model.js
+++ b/backend/models/role.model.js
@@ -10,6 +10,7 @@ module.exports = (sequelize, DataTypes) => {
       Role.belongsToMany(models.User, {
         through: "UserRoles",
         foreignKey: 'roleId',
+        otherKey: 'userId',
         as: 'users',
       });
     }
@@ -25,4 +26,4 @@ module.exports = (sequelize, DataTypes) => {
     tableName: "Roles",
   });
   return Role;
-};
\ No newline at end of file
+};
diff --git a/backend/models/user.model.js b/backend/models/user.model.js
index 16901f8..377c5ac 100644
--- a/backend/models/user.model.js
+++ b/backend/models/user.model.js
@@ -11,6 +11,7 @@ module.exports = (sequelize, DataTypes) => {
       User.belongsToMany(models.Role, {
         through: "UserRoles",
         foreignKey: 'userId',
+        otherKey: 'roleId',
         as: 'roles',
       });
       User.belongsTo(models.Auth, {
diff --git a/backend/models/userRole.model.js b/backend/models/userRole.model.js
new file mode 100644
index 0000000..7d5183d
--- /dev/null
+++ b/backend/models/userRole.model.js
@@ -0,0 +1,30 @@
+const { Model } = require('sequelize');
+
+module.exports = (sequelize, DataTypes) => {
+    class UserRole extends Model {
+        static associate(models) {}
+    }
+
+    UserRole.init({
+        userId: {
+            type: DataTypes.INTEGER,
+            references: {
+                model: 'Users',
+                key: 'id'
+            }
+        },
+        roleId: {
+            type: DataTypes.INTEGER,
+            references: {
+                model: 'Roles',
+                key: 'id'
+            }
+        }
+    }, {
+        sequelize,
+        modelName: 'UserRole',
+        tableName: 'UserRoles'
+    });
+
+    return UserRole;
+};