diff --git a/app/Providers/MailServiceProvider.php b/app/Providers/MailServiceProvider.php
index 9bf088b34591..9b0ea91db054 100644
--- a/app/Providers/MailServiceProvider.php
+++ b/app/Providers/MailServiceProvider.php
@@ -14,11 +14,11 @@ class MailServiceProvider extends MailProvider
 
     public function register()
     {
-        $this->registerIlluminateMailer();
     }
 
     public function boot()
     {
+        $this->registerIlluminateMailer();
 
     }
 
@@ -32,13 +32,13 @@ class MailServiceProvider extends MailProvider
             return $app->make('mail.manager')->mailer();
         });
 
-        $this->app['mail.manager']->extend('postmark', function ($app, $postmark) {
-            $postmark = new PostmarkTransport(
+        $this->app['mail.manager']->extend('postmark', function () {
+            
+            return new PostmarkTransport(
                 $this->guzzle(config('postmark.guzzle', [])),
                 config('postmark.secret')
             );
 
-            return $postmark;
         });
         
         $this->app->afterResolving('mail.manager', function (GmailTransportManager $mailManager) {