diff --git a/core/tests/Drupal/Tests/UnitTestCase.php b/core/tests/Drupal/Tests/UnitTestCase.php
index 2ca419d204bea7211bf2b6b142f33ea3477ca573..03e5d1c786e1b1ee938413a2bb3b26a8509a3a80 100644
--- a/core/tests/Drupal/Tests/UnitTestCase.php
+++ b/core/tests/Drupal/Tests/UnitTestCase.php
@@ -20,7 +20,7 @@
 /**
  * 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