diff --git a/src/Headers.php b/src/Headers.php
index cd519d9..ab85ad6 100644
--- a/src/Headers.php
+++ b/src/Headers.php
@@ -15,8 +15,8 @@ public static function headers(): array
             'X-Tealc' => 'Indeed',
             'X-Anna' => 'Do you want to build a snowman?',
             'X-Olaf' => 'I love summer!',
-	    'X-Wing' => 'Pew pew',
-	    'X-ClacksOverhead' => 'GNU Terry Pratchett',
+            'X-Wing' => 'Pew pew',
+            'X-ClacksOverhead' => 'GNU Terry Pratchett',
         ];
     }
 }