diff --git a/tests/Composer/Test/Json/JsonFormatterTest.php b/tests/Composer/Test/Json/JsonFormatterTest.php
index 6e341d382..ce7ceefa6 100644
--- a/tests/Composer/Test/Json/JsonFormatterTest.php
+++ b/tests/Composer/Test/Json/JsonFormatterTest.php
@@ -22,9 +22,9 @@ class JsonFormatterTest extends \PHPUnit_Framework_TestCase
      */
     public function testUnicodeWithPrependedSlash()
     {
-	if (!extension_loaded('mbstring')) {
-		$this->markTestSkipped('Test requires the mbstring extension');
-	}
+        if (!extension_loaded('mbstring')) {
+            $this->markTestSkipped('Test requires the mbstring extension');
+        }
 
         $data = '"' . chr(92) . chr(92) . chr(92) . 'u0119"';
         $encodedData = JsonFormatter::format($data, true, true);