diff --git a/core/tests/Drupal/Tests/UnitTestCase.php b/core/tests/Drupal/Tests/UnitTestCase.php
index 73a2925cc6d0541e51926135d456a5e1903d1cb0..d2a28d976282a49f29508723f1da4b61018db128 100644
--- a/core/tests/Drupal/Tests/UnitTestCase.php
+++ b/core/tests/Drupal/Tests/UnitTestCase.php
@@ -19,7 +19,7 @@
 /**
  * Provides a base class and helpers for Drupal unit tests.
  *
- * Using Symfony's dump() function() in Unit tests will produce output on the
+ * Using Symfony's dump() function in Unit tests will produce output on the
  * command line.
  *
  * @ingroup testing