diff --git a/tests/phpunit/tests/rest-api/rest-settings-controller.php b/tests/phpunit/tests/rest-api/rest-settings-controller.php
index e8f90b53f20f1..eee2605531cc9 100644
--- a/tests/phpunit/tests/rest-api/rest-settings-controller.php
+++ b/tests/phpunit/tests/rest-api/rest-settings-controller.php
@@ -119,6 +119,7 @@ public function test_get_items() {
 			'default_ping_status',
 			'default_comment_status',
 			'site_icon', // Registered in wp-includes/blocks/site-logo.php
+			'enable_real_time_collaboration',
 		);
 
 		if ( ! is_multisite() ) {