diff --git a/system/Router/DefinedRouteCollector.php b/system/Router/DefinedRouteCollector.php
index 4fdbbb02597b..b56116ac23ab 100644
--- a/system/Router/DefinedRouteCollector.php
+++ b/system/Router/DefinedRouteCollector.php
@@ -21,9 +21,9 @@
  */
 final class DefinedRouteCollector
 {
-    private RouteCollection $routeCollection;
+    private RouteCollectionInterface $routeCollection;
 
-    public function __construct(RouteCollection $routes)
+    public function __construct(RouteCollectionInterface $routes)
     {
         $this->routeCollection = $routes;
     }