diff --git a/core/modules/system/src/Tests/Theme/ThemeTest.php b/core/modules/system/src/Tests/Theme/ThemeTest.php
index ee26c4d..d8f2c89 100644
--- a/core/modules/system/src/Tests/Theme/ThemeTest.php
+++ b/core/modules/system/src/Tests/Theme/ThemeTest.php
@@ -290,4 +290,5 @@ function testRegionClass() {
     $elements = $this->cssSelect(".region-sidebar-first.new_class");
     $this->assertEqual(count($elements), 1, 'New class found.');
   }
+
 }