diff --git a/src/Extension/Application/AbstractApp.php b/src/Extension/Application/AbstractApp.php
index ed91c2fb..ec91cc9f 100644
--- a/src/Extension/Application/AbstractApp.php
+++ b/src/Extension/Application/AbstractApp.php
@@ -7,10 +7,16 @@
 use BEAR\Resource\ResourceInterface;
 use BEAR\Sunday\Extension\Error\ErrorInterface;
 use BEAR\Sunday\Extension\Router\RouterInterface;
+use BEAR\Sunday\Extension\Transfer\HttpCacheInterface;
 use BEAR\Sunday\Extension\Transfer\TransferInterface;
 
 class AbstractApp implements AppInterface
 {
+    /**
+     * @var HttpCacheInterface
+     */
+    public $httpCache;
+
     /**
      * @var RouterInterface
      */
@@ -32,17 +38,20 @@ class AbstractApp implements AppInterface
     public $error;
 
     /**
-     * @param RouterInterface   $router    Resource router
-     * @param TransferInterface $responder Resource responder
-     * @param ResourceInterface $resource  BEAR.Resource client
-     * @param ErrorInterface    $error     Error handler
+     * @param HttpCacheInterface $httpCache HTTP Cache 304 responder
+     * @param RouterInterface    $router    Resource router
+     * @param TransferInterface  $responder Resource responder
+     * @param ResourceInterface  $resource  BEAR.Resource client
+     * @param ErrorInterface     $error     Error handler
      */
     public function __construct(
+        HttpCacheInterface $httpCache,
         RouterInterface $router,
         TransferInterface $responder,
         ResourceInterface $resource,
         ErrorInterface $error
     ) {
+        $this->httpCache = $httpCache;
         $this->router = $router;
         $this->responder = $responder;
         $this->resource = $resource;