diff --git a/tests/system/Router/RouteCollectionTest.php b/tests/system/Router/RouteCollectionTest.php
index 10bb36ec9c08..a36fcb8de3b2 100644
--- a/tests/system/Router/RouteCollectionTest.php
+++ b/tests/system/Router/RouteCollectionTest.php
@@ -1462,7 +1462,7 @@ public function testRouteToWithGenericSubdomainNot()
 
         $routes->get('i/(:any)', 'App\Controllers\Site\CDoc::item/$1', ['subdomain' => '*', 'as' => 'doc_item']);
 
-        $this->assertSame('/i/sth', $routes->reverseRoute('doc_item', 'sth'));
+        $this->assertFalse($routes->reverseRoute('doc_item', 'sth'));
     }
 
     public function testRouteToWithoutSubdomainMatch()