diff --git a/src/net/http/transport.go b/src/net/http/transport.go
index da86b261..a41e732 100644
--- a/src/net/http/transport.go
+++ b/src/net/http/transport.go
@@ -511,6 +511,7 @@
 		}
 	}
 
+	origReq := req
 	req = setupRewindBody(req)
 
 	if altRT := t.alternateRoundTripper(req); altRT != nil {
@@ -572,6 +573,7 @@
 			resp, err = pconn.roundTrip(treq)
 		}
 		if err == nil {
+			resp.Request = origReq
 			return resp, nil
 		}
 
diff --git a/src/net/http/transport_test.go b/src/net/http/transport_test.go
index 99056a4..31a41f5 100644
--- a/src/net/http/transport_test.go
+++ b/src/net/http/transport_test.go
@@ -3511,7 +3511,8 @@
 
 			for i := 0; i < 3; i++ {
 				t0 := time.Now()
-				res, err := c.Do(tc.req())
+				req := tc.req()
+				res, err := c.Do(req)
 				if err != nil {
 					if time.Since(t0) < MaxWriteWaitBeforeConnReuse/2 {
 						mu.Lock()
@@ -3522,6 +3523,9 @@
 					t.Skipf("connection likely wasn't recycled within %d, interfering with actual test; skipping", MaxWriteWaitBeforeConnReuse)
 				}
 				res.Body.Close()
+				if res.Request != req {
+					t.Errorf("Response.Request != original request; want identical Request")
+				}
 			}
 
 			mu.Lock()