diff --git a/slow/slow.py b/slow/slow.py
index 5a53485..a6a784d 100644
--- a/slow/slow.py
+++ b/slow/slow.py
@@ -38,11 +38,14 @@ class Headers:
 
 
 class Request:
-    def __init__(self, method: str, path: str, headers: Headers, body: bytes):
+    def __init__(
+        self, method: str, path: str, headers: Headers, body: bytes, app: "App"
+    ):
         self.method = method
         self.path = path
         self.headers = headers
         self.body = body
+        self.app = app
 
     def __str__(self):
         return str(