diff --git a/src/Entity/JobOrder.php b/src/Entity/JobOrder.php
index 2cbac875..053c98e9 100644
--- a/src/Entity/JobOrder.php
+++ b/src/Entity/JobOrder.php
@@ -173,6 +173,12 @@ class JobOrder
      */
     protected $cancel_reason;
 
+    // tickets associated with job order
+    /**
+     * @ORM\OneToMany(targetEntity="Ticket", mappedBy="job_order")
+     */
+    protected $tickets;
+
     public function __construct()
     {
         $this->date_create = new DateTime();
@@ -435,4 +441,9 @@ class JobOrder
     {
         return $this->cancel_reason;
     }
+
+    public function getTickets()
+    {
+        return $this->tickets;
+    }
 }
diff --git a/src/Entity/Ticket.php b/src/Entity/Ticket.php
index df305df7..38faf2be 100644
--- a/src/Entity/Ticket.php
+++ b/src/Entity/Ticket.php
@@ -103,6 +103,13 @@ class Ticket
      */
     protected $customer;
 
+    // job order associated with the ticket (optional)
+    /**
+     * @ORM\ManyToOne(targetEntity="JobOrder", inversedBy="tickets")
+     * @ORM\JoinColumn(name="job_order_id", referencedColumnName="id", nullable=true)
+     */
+    protected $job_order;
+
     public function __construct()
     {
         $this->date_create = new DateTime();
@@ -260,4 +267,15 @@ class Ticket
     {
         return $this->customer;
     }
+
+    public function setJobOrder(JobOrder $job_order)
+    {
+        $this->job_order = $job_order;
+        return $this;
+    }
+
+    public function getJobOrder()
+    {
+        return $this->job_order;
+    }
 }