diff --git a/core/modules/system/src/Tests/System/ThemeTest.php b/core/modules/system/src/Tests/System/ThemeTest.php
index 931bc89..ee9d12d 100644
--- a/core/modules/system/src/Tests/System/ThemeTest.php
+++ b/core/modules/system/src/Tests/System/ThemeTest.php
@@ -119,8 +119,8 @@ function testThemeSettings() {
         $explicit_file = 'public://' . $input;
         $local_file = PublicStream::basePath() . '/' . $input;
       }
-      $this->assertEqual((string) $elements[0], $local_file);
-      $this->assertEqual((string) $elements[1], $explicit_file);
+      $this->assertEqual((string) $elements[1], $local_file);
+      $this->assertEqual((string) $elements[2], $explicit_file);
 
       // Verify the actual 'src' attribute of the logo being output in a site
       // branding block.