diff --git a/app/Concert.php b/app/Concert.php
index 6ee6f9b..aeb5e49 100644
--- a/app/Concert.php
+++ b/app/Concert.php
@@ -28,6 +28,7 @@ class Concert extends Model
     public function publish()
     {
         $this->update(['published_at' => $this->freshTimestamp()]);
+        $this->addTickets($this->ticket_quantity);
     }
 
     public function getFormattedDateAttribute()
diff --git a/app/Http/Controllers/Backstage/ConcertsController.php b/app/Http/Controllers/Backstage/ConcertsController.php
index acebcca..66f11b4 100644
--- a/app/Http/Controllers/Backstage/ConcertsController.php
+++ b/app/Http/Controllers/Backstage/ConcertsController.php
@@ -49,7 +49,8 @@ class ConcertsController extends Controller
             'state' => request('state'),
             'zip' => request('zip'),
             'ticket_price' => request('ticket_price') * 100,
-        ])->addTickets(request('ticket_quantity'));
+            'ticket_quantity' => (int) request('ticket_quantity'),
+        ]);
 
         $concert->publish();
 
diff --git a/tests/Feature/Backstage/AddConcertTest.php b/tests/Feature/Backstage/AddConcertTest.php
index addaaf3..035ce32 100644
--- a/tests/Feature/Backstage/AddConcertTest.php
+++ b/tests/Feature/Backstage/AddConcertTest.php
@@ -89,6 +89,7 @@ class AddConcertTest extends TestCase
             $this->assertEquals('ON', $concert->state);
             $this->assertEquals('12345', $concert->zip);
             $this->assertEquals(3250, $concert->ticket_price);
+            $this->assertEquals(75, $concert->ticket_quantity);
             $this->assertEquals(75, $concert->ticketsRemaining());
         });
     }
diff --git a/tests/Unit/ConcertTest.php b/tests/Unit/ConcertTest.php
index 0413f07..69f3eeb 100644
--- a/tests/Unit/ConcertTest.php
+++ b/tests/Unit/ConcertTest.php
@@ -61,12 +61,17 @@ class ConcertTest extends TestCase
     /** @test */
     function concerts_can_be_published()
     {
-        $concert = factory(Concert::class)->create(['published_at' => null]);
+        $concert = factory(Concert::class)->create([
+            'published_at' => null,
+            'ticket_quantity' => 5,
+        ]);
         $this->assertFalse($concert->isPublished());
+        $this->assertEquals(0, $concert->ticketsRemaining());
 
         $concert->publish();
 
         $this->assertTrue($concert->isPublished());
+        $this->assertEquals(5, $concert->ticketsRemaining());
     }
 
     /** @test */