diff --git a/lib/httpx/plugins/response_cache/file_store.rb b/lib/httpx/plugins/response_cache/file_store.rb
index b9e6d2d1..e0a3e662 100644
--- a/lib/httpx/plugins/response_cache/file_store.rb
+++ b/lib/httpx/plugins/response_cache/file_store.rb
@@ -129,6 +129,7 @@ module HTTPX::Plugins
 
         response = request.options.response_class.new(request, status, version, response_headers)
         response.original_request = original_request
+        response.finish!
 
         ::IO.copy_stream(f, response.body)
 
diff --git a/test/response_cache_file_store_test.rb b/test/response_cache_file_store_test.rb
index 113369e6..a7bd42ee 100644
--- a/test/response_cache_file_store_test.rb
+++ b/test/response_cache_file_store_test.rb
@@ -15,6 +15,13 @@ class ResponseCacheFileStoreTest < Minitest::Test
     assert File.exist?(store.dir.join(request.response_cache_key))
   end
 
+  def test_finished
+    request = make_request("GET", "http://store-cache/")
+    cached_response(request)
+    response = store.get(request)
+    assert response.finished?
+  end
+
   private
 
   def store_class