diff -u b/core/modules/color/tests/src/Functional/ColorTranslationPreviewTest.php b/core/modules/color/tests/src/Functional/ColorTranslationPreviewTest.php
--- b/core/modules/color/tests/src/Functional/ColorTranslationPreviewTest.php
+++ b/core/modules/color/tests/src/Functional/ColorTranslationPreviewTest.php
@@ -55,7 +55,7 @@
     $url_preview = 'core/modules/color/tests/modules/color_test/themes/color_test_theme/color/preview.html.twig';
     $this->preview = file_get_contents($url_preview);
     $this->assertRegExp('/{% trans %}/', $this->preview);
-    $this->assertRegExp('/{% entrans %}/', $this->preview);
+    $this->assertRegExp('/{% endtrans %}/', $this->preview);
 
   }