diff --git a/tests/phpunit/tests/block-supports/duotone.php b/tests/phpunit/tests/block-supports/duotone.php
index 1a949ad24a..9ec3c70958 100644
--- a/tests/phpunit/tests/block-supports/duotone.php
+++ b/tests/phpunit/tests/block-supports/duotone.php
@@ -8,7 +8,7 @@
  * @package WordPress
  */
 
-class Tests_Block_Supports_DuoTones extends WP_UnitTestCase {
+class Tests_Block_Supports_Duotone extends WP_UnitTestCase {
 	/**
 	 * Cleans up CSS added to block-supports from duotone styles. We neeed to do this
 	 * in order to avoid impacting other tests.