diff --git a/http/http_connection.hpp b/http/http_connection.hpp
index 1c24c61..5277981 100644
--- a/http/http_connection.hpp
+++ b/http/http_connection.hpp
@@ -439,7 +439,7 @@
             req->getHeaderValue(boost::beast::http::field::if_none_match);
         if (!expected.empty())
         {
-            res.setExpectedHash(expected);
+            asyncResp->res.setExpectedHash(expected);
         }
         handler->handle(req, asyncResp);
     }