diff --git a/src/Illuminate/Foundation/Testing/TestResponse.php b/src/Illuminate/Foundation/Testing/TestResponse.php
index 6765fec80440..78ef234fa78f 100644
--- a/src/Illuminate/Foundation/Testing/TestResponse.php
+++ b/src/Illuminate/Foundation/Testing/TestResponse.php
@@ -124,7 +124,7 @@ public function assertRedirect($uri = null)
             $this->isRedirect(), 'Response status code ['.$this->getStatusCode().'] is not a redirect status code.'
         );
 
-        if (!is_null($uri)) {
+        if (! is_null($uri)) {
             $this->assertUri($uri);
         }