diff --git a/tests/phpunit/tests/media/wpGetChromiumMajorVersion.php b/tests/phpunit/tests/media/wpGetChromiumMajorVersion.php
index 7249d9b91b665..eb03985116451 100644
--- a/tests/phpunit/tests/media/wpGetChromiumMajorVersion.php
+++ b/tests/phpunit/tests/media/wpGetChromiumMajorVersion.php
@@ -17,7 +17,7 @@ class Tests_Media_wpGetChromiumMajorVersion extends WP_UnitTestCase {
 
 	public function set_up() {
 		parent::set_up();
-		$this->original_user_agent = isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT'] : null;
+		$this->original_user_agent = $_SERVER['HTTP_USER_AGENT'] ?? null;
 	}
 
 	public function tear_down() {