diff --git a/tests/NexmoDriverTest.php b/tests/NexmoDriverTest.php
index 57df1a4..186429c 100644
--- a/tests/NexmoDriverTest.php
+++ b/tests/NexmoDriverTest.php
@@ -253,7 +253,7 @@ public function it_can_build_payload_with_additional_parameters()
 
         $message = 'string';
         $payload = $driver->buildServicePayload($message, $incomingMessage, [
-            'from' => 'custom'
+            'from' => 'custom',
         ]);
 
         $this->assertSame([