diff --git a/sh_scrapy/middlewares.py b/sh_scrapy/middlewares.py
index 8c7d586..476526b 100644
--- a/sh_scrapy/middlewares.py
+++ b/sh_scrapy/middlewares.py
@@ -98,7 +98,7 @@ def process_response(self, request, response, spider):
             rs=len(response.body),
             duration=request.meta.get('download_latency', 0) * 1000,
             parent=request.meta.setdefault(HS_PARENT_ID_KEY),
-            fp=self._fingerprint(response.request),
+            fp=self._fingerprint(request),
         )
         # Generate and set request id.
         request_id = next(self.request_id_sequence)
diff --git a/tests/test_middlewares.py b/tests/test_middlewares.py
index 9144817..f6d36ad 100644
--- a/tests/test_middlewares.py
+++ b/tests/test_middlewares.py
@@ -48,13 +48,13 @@ def test_hs_middlewares(hs_downloader_middleware, hs_spider_middleware):
     assert len(hs_spider_middleware._seen_requests) == 0
     assert len(hs_downloader_middleware._seen_requests) == 0
 
-    response_0.request = request_0
     hs_downloader_middleware.process_response(request_0, response_0, spider)
 
     assert request_0.meta[HS_REQUEST_ID_KEY] == 0
     assert request_0.meta[HS_PARENT_ID_KEY] is None
     assert hs_spider_middleware._seen_requests[request_0] == 0
 
+    response_0.request = request_0
     request_1 = Request(url)
     request_2 = Request(url)
     item1 = {}
@@ -71,14 +71,12 @@ def test_hs_middlewares(hs_downloader_middleware, hs_spider_middleware):
 
     response_1 = Response(url)
     hs_downloader_middleware.process_request(request_1, spider)
-    response_1.request = request_1
     hs_downloader_middleware.process_response(request_1, response_1, spider)
     assert request_1.meta[HS_REQUEST_ID_KEY] == 1
     assert request_1.meta[HS_PARENT_ID_KEY] == 0
 
     response_2 = Response(url)
     hs_downloader_middleware.process_request(request_2, spider)
-    response_2.request = request_2
     hs_downloader_middleware.process_response(request_2, response_2, spider)
     assert request_2.meta[HS_REQUEST_ID_KEY] == 2
     assert request_2.meta[HS_PARENT_ID_KEY] == 0
@@ -105,14 +103,12 @@ def __init__(self, url: str, request: Optional[Request] = None):
     response_1 = DummyResponse(url, request)
     response_2 = Response(url)
     hs_downloader_middleware.process_request(request, spider)
-    response_1.request = request
     hs_downloader_middleware.process_response(request, response_1, spider)
 
     with open(hs_downloader_middleware.pipe_writer.path, 'r') as tmp_file:
         assert tmp_file.readline() == ""
     assert request.meta == {}
 
-    response_2.request = request
     hs_downloader_middleware.process_response(request, response_2, spider)
     with open(hs_downloader_middleware.pipe_writer.path, 'r') as tmp_file:
         assert tmp_file.readline().startswith('REQ')
@@ -144,7 +140,6 @@ def __init__(self, url: str, request: Optional[Request] = None):
     assert len(hs_spider_middleware._seen_requests) == 0
     assert len(hs_downloader_middleware._seen_requests) == 0
 
-    response_0.request = request_0
     hs_downloader_middleware.process_response(request_0, response_0, spider)
 
     assert request_0.meta[HS_REQUEST_ID_KEY] == 0
@@ -161,7 +156,6 @@ def __init__(self, url: str, request: Optional[Request] = None):
     assert HS_REQUEST_ID_KEY not in request_1.meta
     assert request_1.meta[HS_PARENT_ID_KEY] == 0
 
-    response_1.request = request_1
     hs_downloader_middleware.process_response(request_1, response_1, spider)
 
     assert request_1.meta[HS_REQUEST_ID_KEY] == 1
@@ -171,13 +165,11 @@ def __init__(self, url: str, request: Optional[Request] = None):
     response_2_1 = DummyResponse(url, request_2)
     response_2_2 = Response(url)
 
-    response_2_1.request = request_2
     hs_downloader_middleware.process_response(request_2, response_2_1, spider)
 
     assert request_2.meta[HS_REQUEST_ID_KEY] == 1
     assert request_2.meta[HS_PARENT_ID_KEY] == 0
 
-    response_2_2.request = request_2
     hs_downloader_middleware.process_response(request_2, response_2_2, spider)
 
     assert request_2.meta[HS_REQUEST_ID_KEY] == 2