diff --git a/src/TestSuite/EmailAssertTrait.php b/src/TestSuite/EmailAssertTrait.php
index 7f2cee85591..74ebc8e8a56 100644
--- a/src/TestSuite/EmailAssertTrait.php
+++ b/src/TestSuite/EmailAssertTrait.php
@@ -12,7 +12,7 @@
  * @since         3.3.1
  * @license       http://www.opensource.org/licenses/mit-license.php MIT License
  */
-namespace Cake\TestSuite\Assertion;
+namespace Cake\TestSuite;
 
 use Cake\Mailer\Email;