diff --git a/17_oop.php b/17_oop.php
index bfd5295..768fd49 100644
--- a/17_oop.php
+++ b/17_oop.php
@@ -61,8 +61,8 @@ function __destruct() {
   It is achieved by creating a new class that extends an existing class.
 */
 
-class employee extends User {
-  public function __construct($name, $email, $password, $title) {
+class Employee extends User {
+  public function __construct($name, $email, $password, private $title) {
     parent::__construct($name, $email, $password);
     $this->title = $title;
   }
@@ -72,5 +72,5 @@ public function getTitle() {
   }
 }
 
-$employee1 = new employee('John','johndoe@gmail.com','123456','Manager');
-echo $employee1->getTitle();
\ No newline at end of file
+$employee1 = new Employee('John','johndoe@gmail.com','123456','Manager');
+echo $employee1->getTitle();